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.claude/hooks/inject-subagent-context.py

@@ -0,0 +1,771 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Multi-Platform Sub-Agent Context Injection Hook
+
+Injects task-specific context when sub-agents (implement, check, research) are spawned.
+
+Core Design Philosophy:
+- Hook is responsible for injecting all context, subagent works autonomously with complete info
+- Each agent has a dedicated jsonl file defining its context
+- No resume needed, no segmentation, behavior controlled by code not prompt
+
+Trigger: PreToolUse (before Task tool call)
+
+Context Source: Trellis active task resolver points to task directory
+- implement.jsonl - Implement agent dedicated context
+- check.jsonl     - Check agent dedicated context
+- prd.md          - Requirements document
+- design.md       - Technical design for complex tasks
+- implement.md    - Execution plan for complex tasks
+- codex-review-output.txt - Code Review results
+"""
+from __future__ import annotations
+
+# IMPORTANT: Suppress all warnings FIRST
+import warnings
+warnings.filterwarnings("ignore")
+
+import json
+import os
+import sys
+from pathlib import Path
+from typing import Any
+
+# IMPORTANT: Force stdout to use UTF-8 on Windows
+# This fixes UnicodeEncodeError when outputting non-ASCII characters
+if sys.platform.startswith("win"):
+    import io as _io
+    if hasattr(sys.stdout, "reconfigure"):
+        sys.stdout.reconfigure(encoding="utf-8", errors="replace")  # type: ignore[union-attr]
+    elif hasattr(sys.stdout, "detach"):
+        sys.stdout = _io.TextIOWrapper(sys.stdout.detach(), encoding="utf-8", errors="replace")  # type: ignore[union-attr]
+
+
+# =============================================================================
+# Path Constants (change here to rename directories)
+# =============================================================================
+
+DIR_WORKFLOW = ".trellis"
+DIR_SPEC = "spec"
+FILE_TASK_JSON = "task.json"
+
+# =============================================================================
+# Subagent Constants (change here to rename subagent types)
+# =============================================================================
+
+AGENT_IMPLEMENT = "trellis-implement"
+AGENT_CHECK = "trellis-check"
+AGENT_RESEARCH = "trellis-research"
+
+# Agents that require a task directory
+AGENTS_REQUIRE_TASK = (AGENT_IMPLEMENT, AGENT_CHECK)
+# All supported agents
+AGENTS_ALL = (AGENT_IMPLEMENT, AGENT_CHECK, AGENT_RESEARCH)
+
+
+def find_repo_root(start_path: str) -> str | None:
+    """
+    Find git repo root from start_path upwards
+
+    Returns:
+        Repo root path, or None if not found
+    """
+    current = Path(start_path).resolve()
+    while current != current.parent:
+        if (current / ".git").exists():
+            return str(current)
+        current = current.parent
+    return None
+
+
+def _detect_platform(input_data: dict) -> str | None:
+    if isinstance(input_data.get("cursor_version"), str):
+        return "cursor"
+    env_map = {
+        "CLAUDE_PROJECT_DIR": "claude",
+        "CURSOR_PROJECT_DIR": "cursor",
+        "CODEBUDDY_PROJECT_DIR": "codebuddy",
+        "FACTORY_PROJECT_DIR": "droid",
+        "GEMINI_PROJECT_DIR": "gemini",
+        "QODER_PROJECT_DIR": "qoder",
+        "KIRO_PROJECT_DIR": "kiro",
+        "COPILOT_PROJECT_DIR": "copilot",
+    }
+    for env_name, platform in env_map.items():
+        if os.environ.get(env_name):
+            return platform
+    script_parts = set(Path(sys.argv[0]).parts)
+    if ".claude" in script_parts:
+        return "claude"
+    if ".cursor" in script_parts:
+        return "cursor"
+    if ".gemini" in script_parts:
+        return "gemini"
+    if ".qoder" in script_parts:
+        return "qoder"
+    if ".codebuddy" in script_parts:
+        return "codebuddy"
+    if ".factory" in script_parts:
+        return "droid"
+    if ".kiro" in script_parts:
+        return "kiro"
+    return None
+
+
+def get_current_task(repo_root: str, input_data: dict) -> str | None:
+    """Resolve current task directory through the unified active task resolver."""
+    scripts_dir = Path(repo_root) / DIR_WORKFLOW / "scripts"
+    if str(scripts_dir) not in sys.path:
+        sys.path.insert(0, str(scripts_dir))
+    try:
+        from common.active_task import resolve_active_task  # type: ignore[import-not-found]
+    except Exception:
+        return None
+
+    active = resolve_active_task(
+        Path(repo_root),
+        input_data,
+        platform=_detect_platform(input_data),
+    )
+    return active.task_path
+
+
+def read_file_content(base_path: str, file_path: str) -> str | None:
+    """Read file content, return None if file doesn't exist"""
+    full_path = os.path.join(base_path, file_path)
+    if os.path.exists(full_path) and os.path.isfile(full_path):
+        try:
+            with open(full_path, "r", encoding="utf-8") as f:
+                return f.read()
+        except Exception:
+            return None
+    return None
+
+
+def read_directory_contents(
+    base_path: str, dir_path: str, max_files: int = 20
+) -> list[tuple[str, str]]:
+    """
+    Read all .md files in a directory
+
+    Args:
+        base_path: Base path (usually repo_root)
+        dir_path: Directory relative path
+        max_files: Max files to read (prevent huge directories)
+
+    Returns:
+        [(file_path, content), ...]
+    """
+    full_path = os.path.join(base_path, dir_path)
+    if not os.path.exists(full_path) or not os.path.isdir(full_path):
+        return []
+
+    results = []
+    try:
+        # Only read .md files, sorted by filename
+        md_files = sorted(
+            [
+                f
+                for f in os.listdir(full_path)
+                if f.endswith(".md") and os.path.isfile(os.path.join(full_path, f))
+            ]
+        )
+
+        for filename in md_files[:max_files]:
+            file_full_path = os.path.join(full_path, filename)
+            relative_path = os.path.join(dir_path, filename)
+            try:
+                with open(file_full_path, "r", encoding="utf-8") as f:
+                    content = f.read()
+                    results.append((relative_path, content))
+            except Exception:
+                continue
+    except Exception:
+        pass
+
+    return results
+
+
+def read_jsonl_entries(base_path: str, jsonl_path: str) -> list[tuple[str, str]]:
+    """
+    Read all file/directory contents referenced in jsonl file
+
+    Schema:
+        {"file": "path/to/file.md", "reason": "..."}
+        {"file": "path/to/dir/", "type": "directory", "reason": "..."}
+        {"_example": "..."}          # seed row — skipped (no `file` field)
+
+    Rows without a ``file`` field (e.g. the self-describing seed line written
+    by ``task.py create`` before the agent has curated entries) are skipped
+    silently. If the resulting entry list is empty, a stderr warning is
+    emitted so the operator can debug missing context.
+
+    Returns:
+        [(path, content), ...]
+    """
+    full_path = os.path.join(base_path, jsonl_path)
+    if not os.path.exists(full_path):
+        print(
+            f"[inject-subagent-context] WARN: {jsonl_path} not found — "
+            f"sub-agent will receive only task artifacts",
+            file=sys.stderr,
+        )
+        return []
+
+    results = []
+    saw_real_entry = False
+    try:
+        with open(full_path, "r", encoding="utf-8") as f:
+            for line in f:
+                line = line.strip()
+                if not line:
+                    continue
+                try:
+                    item = json.loads(line)
+                    file_path = item.get("file") or item.get("path")
+                    entry_type = item.get("type", "file")
+
+                    if not file_path:
+                        # Seed / comment row — skip silently
+                        continue
+
+                    saw_real_entry = True
+                    if entry_type == "directory":
+                        # Read all .md files in directory
+                        dir_contents = read_directory_contents(base_path, file_path)
+                        results.extend(dir_contents)
+                    else:
+                        # Read single file
+                        content = read_file_content(base_path, file_path)
+                        if content:
+                            results.append((file_path, content))
+                except json.JSONDecodeError:
+                    continue
+    except Exception:
+        pass
+
+    if not saw_real_entry:
+        print(
+            f"[inject-subagent-context] WARN: {jsonl_path} has no curated "
+            f"entries (only seed / empty) — sub-agent will receive only "
+            f"task artifacts. See workflow.md planning artifact guidance.",
+            file=sys.stderr,
+        )
+
+    return results
+
+
+
+
+def get_agent_context(repo_root: str, task_dir: str, agent_type: str) -> str:
+    """
+    Get context from {agent_type}.jsonl for the specified agent.
+    Only reads implement.jsonl or check.jsonl (the two JSONL files the task system creates).
+    """
+    context_parts = []
+
+    agent_jsonl = f"{task_dir}/{agent_type}.jsonl"
+    for file_path, content in read_jsonl_entries(repo_root, agent_jsonl):
+        context_parts.append(f"=== {file_path} ===\n{content}")
+
+    return "\n\n".join(context_parts)
+
+
+def get_implement_context(repo_root: str, task_dir: str) -> str:
+    """
+    Complete context for Implement Agent
+
+    Read order:
+    1. All files in implement.jsonl (spec/research manifests)
+    2. prd.md (requirements)
+    3. design.md if present (technical design)
+    4. implement.md if present (execution plan)
+    """
+    context_parts = []
+
+    # 1. Read implement.jsonl
+    base_context = get_agent_context(repo_root, task_dir, "implement")
+    if base_context:
+        context_parts.append(base_context)
+
+    # 2. Requirements document
+    prd_content = read_file_content(repo_root, f"{task_dir}/prd.md")
+    if prd_content:
+        context_parts.append(f"=== {task_dir}/prd.md (Requirements) ===\n{prd_content}")
+
+    # 3. Technical design for complex tasks
+    design_content = read_file_content(repo_root, f"{task_dir}/design.md")
+    if design_content:
+        context_parts.append(
+            f"=== {task_dir}/design.md (Technical Design) ===\n{design_content}"
+        )
+
+    # 4. Execution plan for complex tasks
+    implement_plan_content = read_file_content(repo_root, f"{task_dir}/implement.md")
+    if implement_plan_content:
+        context_parts.append(
+            f"=== {task_dir}/implement.md (Execution Plan) ===\n{implement_plan_content}"
+        )
+
+    return "\n\n".join(context_parts)
+
+
+def get_check_context(repo_root: str, task_dir: str) -> str:
+    """
+    Context for Check Agent: check.jsonl + task artifacts.
+    """
+    context_parts = []
+
+    for file_path, content in read_jsonl_entries(repo_root, f"{task_dir}/check.jsonl"):
+        context_parts.append(f"=== {file_path} ===\n{content}")
+
+    prd_content = read_file_content(repo_root, f"{task_dir}/prd.md")
+    if prd_content:
+        context_parts.append(f"=== {task_dir}/prd.md (Requirements) ===\n{prd_content}")
+
+    design_content = read_file_content(repo_root, f"{task_dir}/design.md")
+    if design_content:
+        context_parts.append(
+            f"=== {task_dir}/design.md (Technical Design) ===\n{design_content}"
+        )
+
+    implement_plan_content = read_file_content(repo_root, f"{task_dir}/implement.md")
+    if implement_plan_content:
+        context_parts.append(
+            f"=== {task_dir}/implement.md (Execution Plan) ===\n{implement_plan_content}"
+        )
+
+    return "\n\n".join(context_parts)
+
+
+def get_finish_context(repo_root: str, task_dir: str) -> str:
+    """
+    Context for Finish phase: reuses check.jsonl + prd.md
+    (Finish is a final check, same context source.)
+    """
+    return get_check_context(repo_root, task_dir)
+
+
+
+def build_implement_prompt(original_prompt: str, context: str) -> str:
+    """Build complete prompt for Implement"""
+    return f"""<!-- trellis-hook-injected -->
+# Implement Agent Task
+
+You are the Implement Agent in the Multi-Agent Pipeline.
+
+## Your Context
+
+All the information you need has been prepared for you:
+
+{context}
+
+---
+
+## Your Task
+
+{original_prompt}
+
+---
+
+## Workflow
+
+1. **Understand specs** - All dev specs are injected above, understand them
+    2. **Understand task artifacts** - Read requirements, technical design if present, and execution plan if present
+    3. **Implement feature** - Implement following specs and task artifacts
+4. **Self-check** - Ensure code quality against check specs
+
+## Important Constraints
+
+- Do NOT execute git commit, only code modifications
+- Follow all dev specs injected above
+- Report list of modified/created files when done"""
+
+
+def build_check_prompt(original_prompt: str, context: str) -> str:
+    """Build complete prompt for Check"""
+    return f"""<!-- trellis-hook-injected -->
+# Check Agent Task
+
+You are the Check Agent in the Multi-Agent Pipeline (code and cross-layer checker).
+
+## Your Context
+
+All check specs and dev specs you need:
+
+{context}
+
+---
+
+## Your Task
+
+{original_prompt}
+
+---
+
+## Workflow
+
+1. **Get changes** - Run `git diff --name-only` and `git diff` to get code changes
+2. **Check against specs** - Check item by item against specs above
+3. **Self-fix** - Fix issues directly, don't just report
+4. **Run verification** - Run project's lint and typecheck commands
+
+## Important Constraints
+
+- Fix issues yourself, don't just report
+- Must execute complete checklist in check specs
+- Pay special attention to impact radius analysis (L1-L5)"""
+
+
+def build_finish_prompt(original_prompt: str, context: str) -> str:
+    """Build complete prompt for Finish (final check before PR)"""
+    return f"""<!-- trellis-hook-injected -->
+# Finish Agent Task
+
+You are performing the final check before creating a PR.
+
+## Your Context
+
+Finish checklist and requirements:
+
+{context}
+
+---
+
+## Your Task
+
+{original_prompt}
+
+---
+
+## Workflow
+
+1. **Review changes** - Run `git diff --name-only` to see all changed files
+	2. **Verify task artifacts** - Check requirements in prd.md and, when present, design.md / implement.md
+3. **Spec sync** - Analyze whether changes introduce new patterns, contracts, or conventions
+   - If new pattern/convention found: read target spec file → update it → update index.md if needed
+   - If infra/cross-layer change: follow the 7-section mandatory template from update-spec.md
+   - If pure code fix with no new patterns: skip this step
+4. **Run final checks** - Execute lint and typecheck
+5. **Confirm ready** - Ensure code is ready for PR
+
+## Important Constraints
+
+- You MAY update spec files when gaps are detected (use update-spec.md as guide)
+- MUST read the target spec file BEFORE editing (avoid duplicating existing content)
+- Do NOT update specs for trivial changes (typos, formatting, obvious fixes)
+- If critical CODE issues found, report them clearly (fix specs, not code)
+- Verify all acceptance criteria in prd.md are met
+- Verify design.md and implement.md constraints when those files are present"""
+
+
+
+def get_research_context(repo_root: str, task_dir: str | None) -> str:
+    """
+    Context for Research Agent — project structure overview for spec directories.
+
+    `task_dir` kept for signature parity with get_implement_context / get_check_context
+    so the dispatcher can call them uniformly.
+    """
+    _ = task_dir
+    context_parts = []
+
+    # 1. Project structure overview (dynamically discover spec directories)
+    spec_path = f"{DIR_WORKFLOW}/{DIR_SPEC}"
+    spec_root = Path(repo_root) / DIR_WORKFLOW / DIR_SPEC
+
+    # Build spec tree dynamically
+    tree_lines = [f"{spec_path}/"]
+    if spec_root.is_dir():
+        pkg_dirs = sorted(d for d in spec_root.iterdir() if d.is_dir())
+        for i, pkg_dir in enumerate(pkg_dirs):
+            is_last = i == len(pkg_dirs) - 1
+            prefix = "└── " if is_last else "├── "
+            layers = sorted(d.name for d in pkg_dir.iterdir() if d.is_dir())
+            layer_info = f" ({', '.join(layers)})" if layers else ""
+            tree_lines.append(f"{prefix}{pkg_dir.name}/{layer_info}")
+
+    spec_tree = "\n".join(tree_lines)
+
+    project_structure = f"""## Project Spec Directory Structure
+
+```
+{spec_tree}
+```
+
+To get structured package info, run: `python ./{DIR_WORKFLOW}/scripts/get_context.py --mode packages`
+
+## Search Tips
+
+- Spec files: `{spec_path}/**/*.md`
+- Code search: Use Glob and Grep tools
+- Tech solutions: Use mcp__exa__web_search_exa or mcp__exa__get_code_context_exa"""
+
+    context_parts.append(project_structure)
+
+    return "\n\n".join(context_parts)
+
+
+def build_research_prompt(original_prompt: str, context: str) -> str:
+    """Build complete prompt for Research"""
+    return f"""# Research Agent Task
+
+You are the Research Agent in the Multi-Agent Pipeline (search researcher).
+
+## Core Principle
+
+**You do one thing: find and explain information.**
+
+You are a documenter, not a reviewer.
+
+## Project Info
+
+{context}
+
+---
+
+## Your Task
+
+{original_prompt}
+
+---
+
+## Workflow
+
+1. **Understand query** - Determine search type (internal/external) and scope
+2. **Plan search** - List search steps for complex queries
+3. **Execute search** - Execute multiple independent searches in parallel
+4. **Organize results** - Output structured report
+
+## Search Tools
+
+| Tool | Purpose |
+|------|---------|
+| Glob | Search by filename pattern |
+| Grep | Search by content |
+| Read | Read file content |
+| mcp__exa__web_search_exa | External web search |
+| mcp__exa__get_code_context_exa | External code/doc search |
+
+## Strict Boundaries
+
+**Only allowed**: Describe what exists, where it is, how it works
+
+**Forbidden** (unless explicitly asked):
+- Suggest improvements
+- Criticize implementation
+- Recommend refactoring
+- Modify any files
+
+## Report Format
+
+Provide structured search results including:
+- List of files found (with paths)
+- Code pattern analysis (if applicable)
+- Related spec documents
+- External references (if any)"""
+
+
+def _string_value(value: Any) -> str:
+    if isinstance(value, str):
+        stripped = value.strip()
+        return stripped
+    return ""
+
+
+def _extract_subagent_name(value: Any) -> str:
+    """Extract a sub-agent name from common platform encodings.
+
+    Cursor's native Task args encode custom sub-agents as a protobuf oneof,
+    which can appear in hook JSON as either ``{"custom": {"name": "..."}}``
+    or ``{"type": {"case": "custom", "value": {"name": "..."}}}``.
+    """
+    direct = _string_value(value)
+    if direct:
+        return direct
+
+    if not isinstance(value, dict):
+        return ""
+
+    for key in ("name", "subagent_type_name", "subagentTypeName"):
+        direct = _string_value(value.get(key))
+        if direct:
+            return direct
+
+    custom = value.get("custom")
+    if isinstance(custom, dict):
+        custom_name = _string_value(custom.get("name"))
+        if custom_name:
+            return custom_name
+
+    oneof = value.get("type")
+    if isinstance(oneof, dict):
+        case_name = _string_value(oneof.get("case"))
+        if case_name == "custom":
+            nested_value = oneof.get("value")
+            if isinstance(nested_value, dict):
+                custom_name = _string_value(nested_value.get("name"))
+                if custom_name:
+                    return custom_name
+        if case_name:
+            return case_name
+
+    case_name = _string_value(value.get("case"))
+    if case_name == "custom":
+        nested_value = value.get("value")
+        if isinstance(nested_value, dict):
+            custom_name = _string_value(nested_value.get("name"))
+            if custom_name:
+                return custom_name
+    if case_name:
+        return case_name
+
+    for agent_name in AGENTS_ALL:
+        if agent_name in value:
+            return agent_name
+
+    return ""
+
+
+def _extract_subagent_type(tool_input: dict) -> str:
+    for key in (
+        "subagent_type",
+        "subagentType",
+        "subagent_type_name",
+        "subagentTypeName",
+        "agent_type",
+        "agentType",
+        "name",
+    ):
+        agent_name = _extract_subagent_name(tool_input.get(key))
+        if agent_name:
+            return agent_name
+    return ""
+
+
+def _parse_hook_input(input_data: dict) -> tuple[str, str, dict]:
+    """Parse hook input across different platform formats.
+
+    Returns (subagent_type, original_prompt, tool_input).
+    Handles:
+    - Claude Code / Qoder / CodeBuddy / Droid: tool_name=Task|Agent, tool_input.subagent_type
+    - Cursor: tool_name=Task|Subagent, tool_input.subagent_type
+    - Copilot CLI: toolName=task (camelCase key, lowercase value)
+    - Gemini CLI: tool_name IS the agent name (BeforeTool matcher already filtered)
+    - Kiro: agentSpawn hook, agent_name field at top level
+    """
+    tool_input = input_data.get("tool_input", {})
+
+    # Standard format: Task/Agent tool with subagent_type
+    tool_name = input_data.get("tool_name", "") or input_data.get("toolName", "")
+    if tool_name.lower() in ("task", "agent", "subagent"):
+        return (
+            _extract_subagent_type(tool_input),
+            tool_input.get("prompt", ""),
+            tool_input,
+        )
+
+    # Kiro: agentSpawn hook passes agent_name at top level
+    agent_name = input_data.get("agent_name", "")
+    if agent_name:
+        return agent_name, tool_input.get("prompt", input_data.get("prompt", "")), tool_input
+
+    # Gemini CLI: BeforeTool where tool_name IS the agent name
+    # (matcher already ensured it's one of our agents)
+    if tool_name in AGENTS_ALL:
+        return tool_name, tool_input.get("prompt", ""), tool_input
+
+    # Copilot CLI: toolName field (camelCase), value might be the agent name
+    tool_name_camel = input_data.get("toolName", "")
+    if tool_name_camel in AGENTS_ALL:
+        return tool_name_camel, input_data.get("toolArgs", ""), tool_input
+
+    return "", "", tool_input
+
+
+def main():
+    if os.environ.get("TRELLIS_HOOKS") == "0" or os.environ.get("TRELLIS_DISABLE_HOOKS") == "1":
+        sys.exit(0)
+
+    try:
+        input_data = json.load(sys.stdin)
+    except json.JSONDecodeError:
+        sys.exit(0)
+
+    subagent_type, original_prompt, tool_input = _parse_hook_input(input_data)
+    cwd = input_data.get("cwd", os.getcwd())
+
+    # Only handle subagent types we care about
+    if subagent_type not in AGENTS_ALL:
+        sys.exit(0)
+
+    # Find repo root
+    repo_root = find_repo_root(cwd)
+    if not repo_root:
+        sys.exit(0)
+
+    # Get current task directory (research doesn't require it)
+    task_dir = get_current_task(repo_root, input_data)
+
+    # implement/check need task directory
+    if subagent_type in AGENTS_REQUIRE_TASK:
+        if not task_dir:
+            sys.exit(0)
+        # Check if task directory exists
+        task_dir_full = os.path.join(repo_root, task_dir)
+        if not os.path.exists(task_dir_full):
+            sys.exit(0)
+
+    # Check for [finish] marker in prompt (check agent with finish context)
+    is_finish_phase = "[finish]" in original_prompt.lower()
+
+    # Get context and build prompt based on subagent type
+    if subagent_type == AGENT_IMPLEMENT:
+        assert task_dir is not None  # validated above
+        context = get_implement_context(repo_root, task_dir)
+        new_prompt = build_implement_prompt(original_prompt, context)
+    elif subagent_type == AGENT_CHECK:
+        assert task_dir is not None  # validated above
+        if is_finish_phase:
+            # Finish phase: use finish context (lighter, focused on final verification)
+            context = get_finish_context(repo_root, task_dir)
+            new_prompt = build_finish_prompt(original_prompt, context)
+        else:
+            # Regular check phase: use check context (full specs for self-fix loop)
+            context = get_check_context(repo_root, task_dir)
+            new_prompt = build_check_prompt(original_prompt, context)
+    elif subagent_type == AGENT_RESEARCH:
+        # Research can work without task directory
+        context = get_research_context(repo_root, task_dir)
+        new_prompt = build_research_prompt(original_prompt, context)
+    else:
+        sys.exit(0)
+
+    if not context:
+        sys.exit(0)
+
+    # Return updated input — use a multi-format output that covers all platforms.
+    # Most platforms ignore unrecognized fields, so we include multiple formats.
+    # The platform picks whichever fields it understands.
+    updated = {**tool_input, "prompt": new_prompt}
+    output = {
+        # Claude Code / Qoder / CodeBuddy / Droid format
+        "hookSpecificOutput": {
+            "hookEventName": "PreToolUse",
+            "permissionDecision": "allow",
+            "updatedInput": updated,
+        },
+        # Cursor format
+        "permission": "allow",
+        "updated_input": updated,
+        # Gemini format
+        "updatedInput": updated,
+    }
+
+    print(json.dumps(output, ensure_ascii=False))
+    sys.exit(0)
+
+
+if __name__ == "__main__":
+    main()

.claude/hooks/inject-workflow-state.py

@@ -0,0 +1,408 @@
+#!/usr/bin/env python3
+"""Trellis per-turn breadcrumb hook (UserPromptSubmit / BeforeAgent equivalent).
+
+Runs on every user prompt. Resolves the active task through Trellis'
+session-aware active task resolver and emits a short <workflow-state>
+block reminding the main AI what task is active and its expected flow.
+
+The emitted ``hookEventName`` field is platform-aware: most hosts expect
+``UserPromptSubmit`` (Claude Code naming, also accepted by Cursor / Qoder /
+CodeBuddy / Droid / Codex / Copilot wiring), but Gemini CLI 0.40.x renamed
+its per-turn event to ``BeforeAgent`` and its schema validator rejects the
+legacy name. ``_detect_platform`` picks the right value at runtime.
+Breadcrumb text is pulled exclusively from workflow.md
+[workflow-state:STATUS] tag blocks — workflow.md is the single source of
+truth. There are no fallback dicts in this script: when workflow.md is
+missing or a tag is absent, the breadcrumb degrades to a generic
+"Refer to workflow.md for current step." line so users see (and fix)
+the broken state instead of the hook silently masking it.
+
+Shared across all hook-capable platforms (Claude, Cursor, Codex, Qoder,
+CodeBuddy, Droid, Gemini, Copilot, Kiro). Kiro wires this via the CLI
+custom agent's ``hooks.userPromptSubmit`` and the IDE ``.kiro.hook``
+``promptSubmit`` event; its output branch emits a plain-text breadcrumb
+(Kiro adds hook stdout directly to the conversation context). Written to
+each platform's hooks directory via writeSharedHooks() at init time.
+
+Silent exit 0 cases (no output):
+  - No .trellis/ directory found (not a Trellis project)
+  - task.json malformed or missing status
+"""
+from __future__ import annotations
+
+import json
+import os
+import re
+import sys
+import queue
+import threading
+from pathlib import Path
+
+# Force UTF-8 on stdin/stdout/stderr on Windows. Default codepage there is
+# cp936 / cp1252 / etc. — non-ASCII content (Chinese task names, prd snippets)
+# both in stdin (hook payload from host CLI) and stdout (our emitted blocks)
+# raises UnicodeDecodeError / UnicodeEncodeError. Equivalent to `python -X utf8`
+# but applied per-stream so we don't depend on host CLI's command wiring.
+if sys.platform.startswith("win"):
+    import io as _io
+    for _stream_name in ("stdin", "stdout", "stderr"):
+        _stream = getattr(sys, _stream_name, None)
+        if _stream is None:
+            continue
+        if hasattr(_stream, "reconfigure"):
+            try:
+                _stream.reconfigure(encoding="utf-8", errors="replace")  # type: ignore[union-attr]
+            except Exception:
+                pass
+        elif hasattr(_stream, "detach"):
+            try:
+                setattr(sys, _stream_name, _io.TextIOWrapper(_stream.detach(), encoding="utf-8", errors="replace"))
+            except Exception:
+                pass
+from typing import Optional
+
+
+# Bootstrap notice for Codex while the session has no active task. Codex does not
+# get the full SessionStart overview; this short reminder points the main session
+# at the start skill once and leaves the per-turn state block compact.
+CODEX_NO_TASK_BOOTSTRAP_NOTICE = """<trellis-bootstrap>
+If you have not already loaded Trellis context this session, read the `trellis-start` skill once.
+</trellis-bootstrap>"""
+
+
+# ---------------------------------------------------------------------------
+# CWD-robust Trellis root discovery (fixes hook-path-robustness for this hook)
+# ---------------------------------------------------------------------------
+
+def find_trellis_root(start: Path) -> Optional[Path]:
+    """Walk up from start to find directory containing .trellis/.
+
+    Handles CWD drift: subdirectory launches, monorepo packages, etc.
+    Returns None if no .trellis/ found (silent no-op).
+    """
+    cur = start.resolve()
+    while cur != cur.parent:
+        if (cur / ".trellis").is_dir():
+            return cur
+        cur = cur.parent
+    return None
+
+
+# ---------------------------------------------------------------------------
+# Active task discovery
+# ---------------------------------------------------------------------------
+
+def _detect_platform(input_data: dict) -> str | None:
+    if isinstance(input_data.get("cursor_version"), str):
+        return "cursor"
+    env_map = {
+        "CLAUDE_PROJECT_DIR": "claude",
+        "CURSOR_PROJECT_DIR": "cursor",
+        "CODEBUDDY_PROJECT_DIR": "codebuddy",
+        "FACTORY_PROJECT_DIR": "droid",
+        "GEMINI_PROJECT_DIR": "gemini",
+        "QODER_PROJECT_DIR": "qoder",
+        "KIRO_PROJECT_DIR": "kiro",
+        "COPILOT_PROJECT_DIR": "copilot",
+        "TRAE_PROJECT_DIR": "trae",
+    }
+    for env_name, platform in env_map.items():
+        if os.environ.get(env_name):
+            return platform
+    script_parts = set(Path(sys.argv[0]).parts)
+    if ".claude" in script_parts:
+        return "claude"
+    if ".cursor" in script_parts:
+        return "cursor"
+    if ".codex" in script_parts:
+        return "codex"
+    if ".gemini" in script_parts:
+        return "gemini"
+    if ".qoder" in script_parts:
+        return "qoder"
+    if ".codebuddy" in script_parts:
+        return "codebuddy"
+    if ".factory" in script_parts:
+        return "droid"
+    if ".kiro" in script_parts:
+        return "kiro"
+    if ".trae" in script_parts:
+        return "trae"
+    return None
+
+
+def _resolve_active_task(root: Path, input_data: dict):
+    scripts_dir = root / ".trellis" / "scripts"
+    if str(scripts_dir) not in sys.path:
+        sys.path.insert(0, str(scripts_dir))
+    from common.active_task import resolve_active_task  # type: ignore[import-not-found]
+
+    return resolve_active_task(root, input_data, platform=_detect_platform(input_data))
+
+
+def get_active_task(root: Path, input_data: dict) -> Optional[tuple[str, str, str]]:
+    """Return (task_id, status, source) from the current active task."""
+    active = _resolve_active_task(root, input_data)
+    if not active.task_path:
+        return None
+
+    task_dir = Path(active.task_path)
+    if not task_dir.is_absolute():
+        task_dir = root / task_dir
+    if active.stale:
+        return task_dir.name, f"stale_{active.source_type}", active.source
+
+    task_json = task_dir / "task.json"
+    if not task_json.is_file():
+        return None
+    try:
+        data = json.loads(task_json.read_text(encoding="utf-8"))
+    except (json.JSONDecodeError, OSError):
+        return None
+
+    task_id = data.get("id") or task_dir.name
+    status = data.get("status", "")
+    if not isinstance(status, str) or not status:
+        return None
+    return task_id, status, active.source
+
+
+# ---------------------------------------------------------------------------
+# Breadcrumb loading: parse workflow.md, fall back to hardcoded defaults
+# ---------------------------------------------------------------------------
+
+# Supports STATUS values with letters, digits, underscores, hyphens
+# (so "in-review" / "blocked-by-team" work alongside "in_progress").
+_TAG_RE = re.compile(
+    r"\[workflow-state:([A-Za-z0-9_-]+)\]\s*\n(.*?)\n\s*\[/workflow-state:\1\]",
+    re.DOTALL,
+)
+
+def load_breadcrumbs(root: Path) -> dict[str, str]:
+    """Parse workflow.md for [workflow-state:STATUS] blocks.
+
+    Returns {status: body_text}. workflow.md is the single source of
+    truth — there are no fallback dicts in this script. Missing tags
+    (or a missing/unreadable workflow.md) fall back to a generic line
+    in build_breadcrumb so users see the broken state and fix
+    workflow.md, rather than the hook silently masking the issue.
+    """
+    workflow = root / ".trellis" / "workflow.md"
+    if not workflow.is_file():
+        return {}
+    try:
+        content = workflow.read_text(encoding="utf-8")
+    except OSError:
+        return {}
+
+    result: dict[str, str] = {}
+    for match in _TAG_RE.finditer(content):
+        status = match.group(1)
+        body = match.group(2).strip()
+        if body:
+            result[status] = body
+    return result
+
+
+def _read_trellis_config(root: Path) -> dict:
+    """Load .trellis/config.yaml via the bundled trellis_config helper.
+
+    The helper lives in .trellis/scripts/common; the hook lives outside the
+    scripts tree, so we extend sys.path before importing.
+    """
+    scripts_dir = root / ".trellis" / "scripts"
+    if str(scripts_dir) not in sys.path:
+        sys.path.insert(0, str(scripts_dir))
+    try:
+        from common.trellis_config import read_trellis_config  # type: ignore[import-not-found]
+    except Exception:
+        return {}
+    try:
+        return read_trellis_config(root)
+    except Exception:
+        return {}
+
+
+def _codex_mode_banner(config: dict) -> str:
+    """Emit a `<codex-mode>` banner for the additionalContext payload.
+
+    Reads `codex.dispatch_mode` from .trellis/config.yaml; defaults to
+    `inline` when missing or invalid because Codex sub-agents run with
+    `fork_turns="none"` isolation and can't inherit the parent session's
+    task context. The banner makes the active mode explicit to Codex AI
+    per turn, complementing the workflow-state body which is per-status.
+    Mode tells AI which dispatch protocol to follow; workflow-state tells
+    AI what step it's at.
+    """
+    mode = "inline"
+    if isinstance(config, dict):
+        codex_cfg = config.get("codex")
+        if isinstance(codex_cfg, dict):
+            cfg_mode = codex_cfg.get("dispatch_mode")
+            if cfg_mode in ("inline", "sub-agent"):
+                mode = cfg_mode
+    if mode == "sub-agent":
+        meaning = (
+            "sub-agent: implement/check work defaults to Trellis sub-agents; "
+            "the main session still coordinates, clarifies, updates specs, commits, and finishes."
+        )
+    else:
+        meaning = (
+            "inline: the main session implements/checks directly; "
+            "do not dispatch implement/check sub-agents."
+        )
+    return f"<codex-mode>{meaning}</codex-mode>"
+
+
+def resolve_breadcrumb_key(
+    status: str, platform: str | None, config: dict
+) -> str:
+    """Pick the breadcrumb tag key based on Codex dispatch_mode.
+
+    Codex defaults to ``inline`` because sub-agents run with ``fork_turns="none"``
+    isolation and can't inherit the parent session's task context. Users can
+    opt into ``codex.dispatch_mode: sub-agent`` in ``.trellis/config.yaml``
+    to use the parallel ``<status>-inline`` tag → ``<status>`` flip. Invalid
+    or missing values fall back to inline.
+
+    Non-codex platforms return the plain status unchanged.
+    """
+    if platform == "codex":
+        mode = "inline"
+        if isinstance(config, dict):
+            codex_cfg = config.get("codex")
+            if isinstance(codex_cfg, dict):
+                cfg_mode = codex_cfg.get("dispatch_mode")
+                if cfg_mode in ("inline", "sub-agent"):
+                    mode = cfg_mode
+        return f"{status}-inline" if mode == "inline" else status
+    return status
+
+
+def build_breadcrumb(
+    task_id: Optional[str],
+    status: str,
+    templates: dict[str, str],
+    source: str | None = None,
+    breadcrumb_key: str | None = None,
+) -> str:
+    """Build the <workflow-state>...</workflow-state> block.
+
+    - Known status (tag present in workflow.md) → detailed template body
+    - Unknown status (no tag, or workflow.md missing) → generic
+      "Refer to workflow.md for current step." line
+    - `no_task` pseudo-status (task_id is None) → header omits task info
+    """
+    lookup_key = breadcrumb_key or status
+    body = templates.get(lookup_key)
+    if body is None and lookup_key != status:
+        body = templates.get(status)
+    if body is None:
+        body = "Refer to workflow.md for current step."
+    header = f"Status: {status}" if task_id is None else f"Task: {task_id} ({status})"
+    return f"<workflow-state>\n{header}\n{body}\n</workflow-state>"
+
+
+# ---------------------------------------------------------------------------
+# Entry
+# ---------------------------------------------------------------------------
+
+def _load_hook_input() -> dict:
+    """Read hook JSON without trusting host runners to close stdin.
+
+    Kiro IDE `runCommand` and similar hook runners can leave stdin open while
+    sending no payload. A plain `json.load(sys.stdin)` then blocks forever.
+    Normal hook runners write the complete JSON payload and close stdin, so the
+    short daemon read preserves that path while failing closed to `{}` for
+    non-piping hosts.
+    """
+    result_queue: "queue.Queue[str | BaseException]" = queue.Queue(maxsize=1)
+
+    def _read() -> None:
+        try:
+            result_queue.put(sys.stdin.read())
+        except BaseException as exc:
+            result_queue.put(exc)
+
+    reader = threading.Thread(target=_read, daemon=True)
+    reader.start()
+    try:
+        raw = result_queue.get(timeout=0.2)
+    except queue.Empty:
+        return {}
+
+    if isinstance(raw, BaseException):
+        return {}
+    try:
+        data = json.loads(raw) if raw.strip() else {}
+    except (json.JSONDecodeError, ValueError):
+        return {}
+    return data if isinstance(data, dict) else {}
+
+
+def main() -> int:
+    if os.environ.get("TRELLIS_HOOKS") == "0" or os.environ.get("TRELLIS_DISABLE_HOOKS") == "1":
+        return 0
+
+    data = _load_hook_input()
+
+    cwd_str = data.get("cwd") or os.getcwd()
+    cwd = Path(cwd_str)
+
+    root = find_trellis_root(cwd)
+    if root is None:
+        return 0  # not a Trellis project
+
+    templates = load_breadcrumbs(root)
+    platform = _detect_platform(data)
+    config = _read_trellis_config(root)
+    task = get_active_task(root, data)
+    if task is None:
+        # No active task — still emit a breadcrumb nudging AI toward
+        # trellis-brainstorm + task.py create when user describes real work.
+        no_task_key = resolve_breadcrumb_key("no_task", platform, config)
+        breadcrumb = build_breadcrumb(
+            None, "no_task", templates, breadcrumb_key=no_task_key
+        )
+    else:
+        task_id, status, source = task
+        status_key = resolve_breadcrumb_key(status, platform, config)
+        source_for_breadcrumb = None if platform == "codex" else source
+        breadcrumb = build_breadcrumb(
+            task_id, status, templates, source_for_breadcrumb, breadcrumb_key=status_key
+        )
+    if platform == "codex":
+        parts: list[str] = []
+        if task is None:
+            parts.append(CODEX_NO_TASK_BOOTSTRAP_NOTICE)
+        parts.append(_codex_mode_banner(config))
+        parts.append(breadcrumb)
+        breadcrumb = "\n\n".join(parts)
+
+    # Kiro (CLI userPromptSubmit / IDE promptSubmit) adds a hook's stdout
+    # directly to the conversation context — no JSON envelope. Emit the bare
+    # breadcrumb text. Conditionally isolated: all other platforms keep the
+    # hookSpecificOutput JSON path below unchanged.
+    if platform == "kiro":
+        print(breadcrumb)
+        return 0
+
+    # Gemini CLI 0.40.x rejects "UserPromptSubmit" — its per-turn event is
+    # named "BeforeAgent". Other platforms (Claude/Cursor/Qoder/CodeBuddy/
+    # Droid/Codex/Copilot) accept the original Claude-style name.
+    hook_event_name = (
+        "BeforeAgent" if platform == "gemini" else "UserPromptSubmit"
+    )
+
+    output = {
+        "hookSpecificOutput": {
+            "hookEventName": hook_event_name,
+            "additionalContext": breadcrumb,
+        }
+    }
+    print(json.dumps(output))
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

.claude/hooks/session-start.py

@@ -0,0 +1,844 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Session Start Hook - Inject structured context
+"""
+from __future__ import annotations
+
+# IMPORTANT: Suppress all warnings FIRST
+import warnings
+warnings.filterwarnings("ignore")
+
+import json
+import os
+import re
+import shlex
+import subprocess
+import sys
+from io import StringIO
+from pathlib import Path
+
+
+def _normalize_windows_shell_path(path_str: str) -> str:
+    """Normalize Unix-style shell paths to real Windows paths.
+
+    On Windows, shells like Git Bash / MSYS2 / Cygwin may report paths like
+    `/d/Users/...` or `/cygdrive/d/Users/...`. `Path.resolve()` will misinterpret
+    these as `D:/d/Users...` on drive D: (or similar), breaking repo root
+    detection.
+
+    This function is intentionally conservative: it only rewrites patterns that
+    unambiguously represent a drive letter mount.
+    """
+    if not isinstance(path_str, str) or not path_str:
+        return path_str
+
+    # Only relevant on Windows; keep other platforms untouched.
+    if not sys.platform.startswith("win"):
+        return path_str
+
+    p = path_str.strip()
+
+    # Already a Windows drive path (C:\... or C:/...)
+    if re.match(r"^[A-Za-z]:[\/]", p):
+        return p
+
+    # MSYS/Git-Bash style: /c/Users/... or /d/Work/...
+    m = re.match(r"^/([A-Za-z])/(.*)", p)
+    if m:
+        drive, rest = m.group(1).upper(), m.group(2)
+        rest = rest.replace('/', '\\')
+        return f"{drive}:\\{rest}"
+
+    # Cygwin style: /cygdrive/c/Users/...
+    m = re.match(r"^/cygdrive/([A-Za-z])/(.*)", p)
+    if m:
+        drive, rest = m.group(1).upper(), m.group(2)
+        rest = rest.replace('/', '\\')
+        return f"{drive}:\\{rest}"
+
+    # WSL mounted drive (sometimes leaked into env): /mnt/c/Users/...
+    m = re.match(r"^/mnt/([A-Za-z])/(.*)", p)
+    if m:
+        drive, rest = m.group(1).upper(), m.group(2)
+        rest = rest.replace('/', '\\')
+        return f"{drive}:\\{rest}"
+
+    return path_str
+
+
+FIRST_REPLY_NOTICE = """<first-reply-notice>
+First visible reply: say once in Chinese that Trellis SessionStart context is loaded, then answer directly.
+This notice is one-shot: do not repeat it after the first assistant reply in the same session.
+</first-reply-notice>"""
+
+# Force UTF-8 on stdin/stdout/stderr on Windows. Default codepage there is
+# cp936 / cp1252 / etc. — non-ASCII content (Chinese task names, prd snippets)
+# both in stdin (hook payload from host CLI) and stdout (our emitted blocks)
+# raises UnicodeDecodeError / UnicodeEncodeError. Equivalent to `python -X utf8`
+# but applied per-stream so we don't depend on host CLI's command wiring.
+if sys.platform.startswith("win"):
+    import io as _io
+    for _stream_name in ("stdin", "stdout", "stderr"):
+        _stream = getattr(sys, _stream_name, None)
+        if _stream is None:
+            continue
+        if hasattr(_stream, "reconfigure"):
+            try:
+                _stream.reconfigure(encoding="utf-8", errors="replace")  # type: ignore[union-attr]
+            except Exception:
+                pass
+        elif hasattr(_stream, "detach"):
+            try:
+                setattr(sys, _stream_name, _io.TextIOWrapper(_stream.detach(), encoding="utf-8", errors="replace"))
+            except Exception:
+                pass
+
+
+
+def _has_curated_jsonl_entry(jsonl_path: Path) -> bool:
+    """Return True iff jsonl has at least one row with a ``file`` field.
+
+    A freshly seeded jsonl only contains a ``{"_example": ...}`` row (no
+    ``file`` key) — that is NOT "ready". Readiness requires at least one
+    curated entry. Matches the contract used by hook-inject and pull-based
+    sub-agent context loaders.
+    """
+    try:
+        for line in jsonl_path.read_text(encoding="utf-8").splitlines():
+            line = line.strip()
+            if not line:
+                continue
+            try:
+                row = json.loads(line)
+            except json.JSONDecodeError:
+                continue
+            if isinstance(row, dict) and row.get("file"):
+                return True
+    except (OSError, UnicodeDecodeError):
+        return False
+    return False
+
+
+def should_skip_injection() -> bool:
+    """Check if any platform's non-interactive flag is set, or if Trellis
+    hooks are explicitly disabled via TRELLIS_HOOKS=0 / TRELLIS_DISABLE_HOOKS=1.
+    """
+    if os.environ.get("TRELLIS_HOOKS") == "0":
+        return True
+    if os.environ.get("TRELLIS_DISABLE_HOOKS") == "1":
+        return True
+    non_interactive_vars = [
+        "CLAUDE_NON_INTERACTIVE",
+        "QODER_NON_INTERACTIVE",
+        "CODEBUDDY_NON_INTERACTIVE",
+        "FACTORY_NON_INTERACTIVE",
+        "CURSOR_NON_INTERACTIVE",
+        "GEMINI_NON_INTERACTIVE",
+        "KIRO_NON_INTERACTIVE",
+        "COPILOT_NON_INTERACTIVE",
+        "TRAE_NON_INTERACTIVE",
+    ]
+    return any(os.environ.get(var) == "1" for var in non_interactive_vars)
+
+
+def read_file(path: Path, fallback: str = "") -> str:
+    try:
+        return path.read_text(encoding="utf-8")
+    except (FileNotFoundError, PermissionError):
+        return fallback
+
+
+def _repo_relative(repo_root: Path, path: Path) -> str:
+    try:
+        return path.relative_to(repo_root).as_posix()
+    except ValueError:
+        return str(path)
+
+
+def _run_git(repo_root: Path, args: list[str]) -> str:
+    try:
+        result = subprocess.run(
+            ["git", *args],
+            capture_output=True,
+            text=True,
+            encoding="utf-8",
+            errors="replace",
+            timeout=3,
+            cwd=str(repo_root),
+        )
+    except (subprocess.TimeoutExpired, FileNotFoundError, PermissionError):
+        return ""
+    if result.returncode != 0:
+        return ""
+    return result.stdout.strip()
+
+
+def _format_git_state(repo_root: Path) -> str:
+    branch = _run_git(repo_root, ["branch", "--show-current"]) or "(detached)"
+    dirty_lines = [
+        line for line in _run_git(repo_root, ["status", "--porcelain"]).splitlines()
+        if line.strip()
+    ]
+    dirty_text = "clean" if not dirty_lines else f"dirty {len(dirty_lines)} paths"
+    return f"Git: branch {branch}; {dirty_text}."
+
+
+def _detect_platform(input_data: dict) -> str | None:
+    if isinstance(input_data.get("cursor_version"), str):
+        return "cursor"
+    env_map = {
+        "CLAUDE_PROJECT_DIR": "claude",
+        "CURSOR_PROJECT_DIR": "cursor",
+        "CODEBUDDY_PROJECT_DIR": "codebuddy",
+        "FACTORY_PROJECT_DIR": "droid",
+        "GEMINI_PROJECT_DIR": "gemini",
+        "QODER_PROJECT_DIR": "qoder",
+        "KIRO_PROJECT_DIR": "kiro",
+        "COPILOT_PROJECT_DIR": "copilot",
+        "TRAE_PROJECT_DIR": "trae",
+    }
+    for env_name, platform in env_map.items():
+        if os.environ.get(env_name):
+            return platform
+    script_parts = set(Path(sys.argv[0]).parts)
+    if ".claude" in script_parts:
+        return "claude"
+    if ".cursor" in script_parts:
+        return "cursor"
+    if ".codex" in script_parts:
+        return "codex"
+    if ".gemini" in script_parts:
+        return "gemini"
+    if ".qoder" in script_parts:
+        return "qoder"
+    if ".codebuddy" in script_parts:
+        return "codebuddy"
+    if ".factory" in script_parts:
+        return "droid"
+    if ".kiro" in script_parts:
+        return "kiro"
+    if ".trae" in script_parts:
+        return "trae"
+    return None
+
+
+def _resolve_context_key(trellis_dir: Path, input_data: dict) -> str | None:
+    scripts_dir = trellis_dir / "scripts"
+    if str(scripts_dir) not in sys.path:
+        sys.path.insert(0, str(scripts_dir))
+    from common.active_task import resolve_context_key  # type: ignore[import-not-found]
+
+    return resolve_context_key(input_data, platform=_detect_platform(input_data))
+
+
+def _persist_context_key_for_bash(context_key: str | None) -> None:
+    """Expose Trellis session identity to later Claude Code Bash commands.
+
+    Claude Code SessionStart hooks can append exports to CLAUDE_ENV_FILE; those
+    variables are then available to Bash tools in the same conversation. Without
+    this bridge, `task.py start` has hook stdin during SessionStart but no
+    session identity when the AI later runs it as a normal shell command.
+    """
+    if not context_key:
+        return
+    env_file = os.environ.get("CLAUDE_ENV_FILE")
+    if not env_file:
+        return
+    try:
+        with open(env_file, "a", encoding="utf-8") as handle:
+            handle.write(f"export TRELLIS_CONTEXT_ID={shlex.quote(context_key)}\n")
+    except OSError:
+        pass
+
+
+def _resolve_active_task(trellis_dir: Path, input_data: dict):
+    scripts_dir = trellis_dir / "scripts"
+    if str(scripts_dir) not in sys.path:
+        sys.path.insert(0, str(scripts_dir))
+    from common.active_task import resolve_active_task  # type: ignore[import-not-found]
+
+    return resolve_active_task(
+        trellis_dir.parent,
+        input_data,
+        platform=_detect_platform(input_data),
+    )
+
+
+def run_script(script_path: Path, context_key: str | None = None) -> str:
+    try:
+        if script_path.suffix == ".py":
+            # Add PYTHONIOENCODING to force UTF-8 in subprocess
+            env = os.environ.copy()
+            env["PYTHONIOENCODING"] = "utf-8"
+            if context_key:
+                env["TRELLIS_CONTEXT_ID"] = context_key
+            cmd = [sys.executable, "-W", "ignore", str(script_path)]
+        else:
+            env = os.environ.copy()
+            if context_key:
+                env["TRELLIS_CONTEXT_ID"] = context_key
+            cmd = [str(script_path)]
+
+        result = subprocess.run(
+            cmd,
+            capture_output=True,
+            text=True,
+            encoding="utf-8",
+            errors="replace",
+            timeout=5,
+            cwd=script_path.parent.parent.parent,
+            env=env,
+        )
+        return result.stdout if result.returncode == 0 else "No context available"
+    except (subprocess.TimeoutExpired, FileNotFoundError, PermissionError):
+        return "No context available"
+
+
+def _normalize_task_ref(task_ref: str) -> str:
+    normalized = task_ref.strip()
+    if not normalized:
+        return ""
+
+    path_obj = Path(normalized)
+    if path_obj.is_absolute():
+        return str(path_obj)
+
+    normalized = normalized.replace("\\", "/")
+    while normalized.startswith("./"):
+        normalized = normalized[2:]
+
+    if normalized.startswith("tasks/"):
+        return f".trellis/{normalized}"
+
+    return normalized
+
+
+def _resolve_task_dir(trellis_dir: Path, task_ref: str) -> Path:
+    normalized = _normalize_task_ref(task_ref)
+    path_obj = Path(normalized)
+    if path_obj.is_absolute():
+        return path_obj
+    if normalized.startswith(".trellis/"):
+        return trellis_dir.parent / path_obj
+    return trellis_dir / "tasks" / path_obj
+
+
+def _get_task_status(trellis_dir: Path, input_data: dict) -> str:
+    """Return compact active-task status, artifact presence, and next action."""
+    active = _resolve_active_task(trellis_dir, input_data)
+
+    if not active.task_path:
+        return (
+            "Status: NO ACTIVE TASK\n"
+            "Next-Action: Classify the current turn before creating any Trellis task. "
+            "Simple conversation / small task asks only whether this turn should create a Trellis task. "
+            "Complex task asks whether task creation and planning are allowed."
+        )
+
+    task_ref = active.task_path
+    task_dir = _resolve_task_dir(trellis_dir, task_ref)
+    if active.stale or not task_dir.is_dir():
+        return (
+            f"Status: STALE POINTER\nTask: {task_ref}\n"
+            f"Next-Action: Run `python ./.trellis/scripts/task.py finish` to clear the stale pointer, "
+            "then ask the user what to work on next."
+        )
+
+    task_json_path = task_dir / "task.json"
+    task_data = {}
+    if task_json_path.is_file():
+        try:
+            task_data = json.loads(task_json_path.read_text(encoding="utf-8"))
+        except (json.JSONDecodeError, PermissionError):
+            pass
+
+    task_title = task_data.get("title", task_ref)
+    task_status = task_data.get("status", "unknown")
+    artifact_names = ("prd.md", "design.md", "implement.md", "implement.jsonl", "check.jsonl")
+    present = [name for name in artifact_names if (task_dir / name).is_file()]
+    if (task_dir / "research").is_dir():
+        present.append("research/")
+    present_line = ", ".join(present) if present else "(none)"
+
+    if task_status == "completed":
+        return (
+            f"Status: COMPLETED\nTask: {task_title}\n"
+            f"Present: {present_line}\n"
+            "Next-Action: Run `/trellis:finish-work`. If the working tree is dirty, return to Phase 3.4 first."
+        )
+
+    has_prd = (task_dir / "prd.md").is_file()
+    has_design = (task_dir / "design.md").is_file()
+    has_implement_plan = (task_dir / "implement.md").is_file()
+    implement_jsonl = task_dir / "implement.jsonl"
+    check_jsonl = task_dir / "check.jsonl"
+    jsonl_ready = (
+        (not implement_jsonl.is_file() or _has_curated_jsonl_entry(implement_jsonl))
+        and (not check_jsonl.is_file() or _has_curated_jsonl_entry(check_jsonl))
+    )
+
+    if task_status == "planning" and not has_prd:
+        return (
+            f"Status: PLANNING\nTask: {task_title}\n"
+            f"Present: {present_line}\n"
+            "Next-Action: Load `trellis-brainstorm` and write `prd.md`. Stay in planning."
+        )
+
+    if task_status == "planning":
+        missing_complex = [
+            name for name, exists in (
+                ("design.md", has_design),
+                ("implement.md", has_implement_plan),
+            )
+            if not exists
+        ]
+        next_bits: list[str] = []
+        if missing_complex:
+            next_bits.append(
+                "Lightweight task can request start review with PRD-only; "
+                f"complex task must add {', '.join(missing_complex)} before start"
+            )
+        else:
+            next_bits.append("Planning artifacts are present; ask for review before `task.py start`")
+        if not jsonl_ready:
+            next_bits.append("curate `implement.jsonl` and `check.jsonl` before sub-agent mode start")
+        return (
+            f"Status: PLANNING\nTask: {task_title}\n"
+            f"Present: {present_line}\n"
+            f"Next-Action: {'; '.join(next_bits)}. Do not enter implementation until the user confirms start."
+        )
+
+    return (
+        f"Status: {str(task_status).upper()}\nTask: {task_title}\n"
+        f"Present: {present_line}\n"
+        "Next-Action: Follow the matching per-turn workflow-state. "
+        "Implementation/check context order is jsonl entries -> `prd.md` -> `design.md if present` -> `implement.md if present`."
+    )
+
+
+def _load_trellis_config(trellis_dir: Path, input_data: dict) -> tuple:
+    """Load Trellis config for session-start decisions.
+
+    Returns:
+        (is_mono, packages_dict, spec_scope, task_pkg, default_pkg)
+    """
+    scripts_dir = trellis_dir / "scripts"
+    if str(scripts_dir) not in sys.path:
+        sys.path.insert(0, str(scripts_dir))
+
+    try:
+        from common.config import get_default_package, get_packages, get_spec_scope, is_monorepo  # type: ignore[import-not-found]
+        from common.paths import get_current_task  # type: ignore[import-not-found]
+
+        repo_root = trellis_dir.parent
+        is_mono = is_monorepo(repo_root)
+        packages = get_packages(repo_root) or {}
+        scope = get_spec_scope(repo_root)
+
+        # Get active task's package
+        task_pkg = None
+        current = get_current_task(
+            repo_root,
+            input_data,
+            platform=_detect_platform(input_data),
+        )
+        if current:
+            task_json = repo_root / current / "task.json"
+            if task_json.is_file():
+                try:
+                    data = json.loads(task_json.read_text(encoding="utf-8"))
+                    if isinstance(data, dict):
+                        tp = data.get("package")
+                        if isinstance(tp, str) and tp:
+                            task_pkg = tp
+                except (json.JSONDecodeError, OSError):
+                    pass
+
+        default_pkg = get_default_package(repo_root)
+        return is_mono, packages, scope, task_pkg, default_pkg
+    except Exception:
+        return False, {}, None, None, None
+
+
+def _check_legacy_spec(trellis_dir: Path, is_mono: bool, packages: dict) -> str | None:
+    """Check for legacy spec directory structure in monorepo.
+
+    Returns warning message if legacy structure detected, None otherwise.
+    """
+    if not is_mono or not packages:
+        return None
+
+    spec_dir = trellis_dir / "spec"
+    if not spec_dir.is_dir():
+        return None
+
+    # Check for legacy flat spec dirs (spec/backend/, spec/frontend/ with index.md)
+    has_legacy = False
+    for legacy_name in ("backend", "frontend"):
+        legacy_dir = spec_dir / legacy_name
+        if legacy_dir.is_dir() and (legacy_dir / "index.md").is_file():
+            has_legacy = True
+            break
+
+    if not has_legacy:
+        return None
+
+    # Check which packages are missing spec/<pkg>/ directory
+    missing = [
+        name for name in sorted(packages.keys())
+        if not (spec_dir / name).is_dir()
+    ]
+
+    if not missing:
+        return None  # All packages have spec dirs
+
+    if len(missing) == len(packages):
+        return (
+            f"[!] Legacy spec structure detected: found `spec/backend/` or `spec/frontend/` "
+            f"but no package-scoped `spec/<package>/` directories.\n"
+            f"Monorepo packages: {', '.join(sorted(packages.keys()))}\n"
+            f"Please reorganize: `spec/backend/` -> `spec/<package>/backend/`"
+        )
+    return (
+        f"[!] Partial spec migration detected: packages {', '.join(missing)} "
+        f"still missing `spec/<pkg>/` directory.\n"
+        f"Please complete migration for all packages."
+    )
+
+
+def _resolve_spec_scope(
+    is_mono: bool,
+    packages: dict,
+    scope,
+    task_pkg: str | None,
+    default_pkg: str | None,
+) -> set | None:
+    """Resolve which packages should have their specs injected.
+
+    Returns:
+        Set of package names to include, or None for full scan.
+    """
+    if not is_mono or not packages:
+        return None  # Single-repo: full scan
+
+    if scope is None:
+        return None  # No scope configured: full scan
+
+    if isinstance(scope, str) and scope == "active_task":
+        if task_pkg and task_pkg in packages:
+            return {task_pkg}
+        if default_pkg and default_pkg in packages:
+            return {default_pkg}
+        return None  # Fallback to full scan
+
+    if isinstance(scope, list):
+        valid = set()
+        for entry in scope:
+            if entry in packages:
+                valid.add(entry)
+            else:
+                print(
+                    f"Warning: spec_scope contains unknown package: {entry}, ignoring",
+                    file=sys.stderr,
+                )
+
+        if valid:
+            # Warn if active task is out of scope
+            if task_pkg and task_pkg not in valid:
+                print(
+                    f"Warning: active task package '{task_pkg}' is out of configured spec_scope",
+                    file=sys.stderr,
+                )
+            return valid
+
+        # All entries invalid: fallback chain
+        print(
+            "Warning: all spec_scope entries invalid, falling back to task/default/full",
+            file=sys.stderr,
+        )
+        if task_pkg and task_pkg in packages:
+            return {task_pkg}
+        if default_pkg and default_pkg in packages:
+            return {default_pkg}
+        return None  # Full scan
+
+    return None  # Unknown scope type: full scan
+
+
+def _collect_spec_index_paths(trellis_dir: Path, allowed_pkgs: set | None) -> list[str]:
+    paths: list[str] = []
+    guides_index = trellis_dir / "spec" / "guides" / "index.md"
+    if guides_index.is_file():
+        paths.append(".trellis/spec/guides/index.md")
+
+    spec_dir = trellis_dir / "spec"
+    if not spec_dir.is_dir():
+        return paths
+
+    for sub in sorted(spec_dir.iterdir()):
+        if not sub.is_dir() or sub.name.startswith(".") or sub.name == "guides":
+            continue
+
+        index_file = sub / "index.md"
+        if index_file.is_file():
+            paths.append(f".trellis/spec/{sub.name}/index.md")
+            continue
+
+        if allowed_pkgs is not None and sub.name not in allowed_pkgs:
+            continue
+        for nested in sorted(sub.iterdir()):
+            if not nested.is_dir():
+                continue
+            nested_index = nested / "index.md"
+            if nested_index.is_file():
+                paths.append(f".trellis/spec/{sub.name}/{nested.name}/index.md")
+
+    return paths
+
+
+def _build_compact_current_state(
+    trellis_dir: Path,
+    input_data: dict,
+    spec_index_paths: list[str],
+) -> str:
+    repo_root = trellis_dir.parent
+    lines: list[str] = []
+
+    try:
+        from common.paths import get_active_journal_file, get_developer, get_tasks_dir, count_lines  # type: ignore[import-not-found]
+        from common.tasks import iter_active_tasks  # type: ignore[import-not-found]
+    except Exception:
+        get_active_journal_file = None  # type: ignore[assignment]
+        get_developer = None  # type: ignore[assignment]
+        get_tasks_dir = None  # type: ignore[assignment]
+        count_lines = None  # type: ignore[assignment]
+        iter_active_tasks = None  # type: ignore[assignment]
+
+    developer = get_developer(repo_root) if get_developer else None
+    lines.append(f"Developer: {developer or '(not initialized)'}")
+    lines.append(_format_git_state(repo_root))
+
+    active = _resolve_active_task(trellis_dir, input_data)
+    if active.task_path:
+        task_dir = _resolve_task_dir(trellis_dir, active.task_path)
+        status = "unknown"
+        task_json = task_dir / "task.json"
+        if task_json.is_file():
+            try:
+                data = json.loads(task_json.read_text(encoding="utf-8"))
+                if isinstance(data, dict):
+                    status = str(data.get("status") or "unknown")
+            except (json.JSONDecodeError, OSError):
+                pass
+        lines.append(f"Current task: {_repo_relative(repo_root, task_dir)}; status={status}.")
+    else:
+        lines.append("Current task: none.")
+
+    if get_tasks_dir and iter_active_tasks:
+        try:
+            task_count = sum(1 for _ in iter_active_tasks(get_tasks_dir(repo_root)))
+            lines.append(
+                f"Active tasks: {task_count} total. Use `python ./.trellis/scripts/task.py list --mine` only if needed."
+            )
+        except Exception:
+            pass
+
+    if get_active_journal_file and count_lines:
+        journal = get_active_journal_file(repo_root)
+        if journal:
+            lines.append(
+                f"Journal: {_repo_relative(repo_root, journal)}, {count_lines(journal)} / 2000 lines."
+            )
+
+    if spec_index_paths:
+        lines.append(f"Spec indexes: {len(spec_index_paths)} available.")
+
+    return "\n".join(lines)
+
+
+def _extract_range(content: str, start_header: str, end_header: str) -> str:
+    """Extract lines starting at `## start_header` up to (but excluding) `## end_header`.
+
+    Both parameters are full header lines WITHOUT the `## ` prefix (e.g. "Phase Index").
+    Returns empty string if start header is not found.
+    End header missing → extracts to end of file.
+    """
+    lines = content.splitlines()
+    start: int | None = None
+    end: int = len(lines)
+    start_match = f"## {start_header}"
+    end_match = f"## {end_header}"
+    for i, line in enumerate(lines):
+        stripped = line.strip()
+        if start is None and stripped == start_match:
+            start = i
+            continue
+        if start is not None and stripped == end_match:
+            end = i
+            break
+    if start is None:
+        return ""
+    return "\n".join(lines[start:end]).rstrip()
+
+
+_BREADCRUMB_TAG_RE = re.compile(
+    r"\[workflow-state:([A-Za-z0-9_-]+)\]\s*\n.*?\n\s*\[/workflow-state:\1\]",
+    re.DOTALL,
+)
+
+
+def _strip_breadcrumb_tag_blocks(content: str) -> str:
+    """Remove `[workflow-state:STATUS]...[/workflow-state:STATUS]` blocks.
+
+    The tag blocks live inside `## Phase Index` (since v0.5.0-rc.0, when
+    they were colocated with their phase summaries) and are consumed by the
+    UserPromptSubmit hook (`inject-workflow-state.py`). The session-start
+    payload already covers the full step bodies, so re-inlining the
+    breadcrumbs here would just duplicate context.
+    """
+    stripped = _BREADCRUMB_TAG_RE.sub("", content)
+    stripped = re.sub(r"<!--.*?-->", "", stripped, flags=re.DOTALL)
+    stripped = re.sub(r"^\[(?!/?workflow-state:)/?[^\]\n]+\]\s*\n?", "", stripped, flags=re.MULTILINE)
+    return re.sub(r"\n{3,}", "\n\n", stripped).strip()
+
+
+def _build_workflow_overview(workflow_path: Path) -> str:
+    """Inject only the compact Phase Index summary for SessionStart."""
+    content = read_file(workflow_path)
+    if not content:
+        return "No workflow.md found"
+
+    out_lines = [
+        "# Development Workflow - Session Summary",
+        "Full guide: .trellis/workflow.md. Step detail: `python ./.trellis/scripts/get_context.py --mode phase --step <X.Y>`.",
+        "",
+    ]
+
+    phases = _extract_range(content, "Phase Index", "Phase 1: Plan")
+    if phases:
+        out_lines.append(_strip_breadcrumb_tag_blocks(phases).rstrip())
+
+    return "\n".join(out_lines).rstrip()
+
+
+def main():
+    if should_skip_injection():
+        sys.exit(0)
+
+    try:
+        hook_input = json.loads(sys.stdin.read())
+        if not isinstance(hook_input, dict):
+            hook_input = {}
+    except (json.JSONDecodeError, ValueError):
+        hook_input = {}
+
+    # Try platform-specific env vars, hook cwd, fallback to cwd
+    project_dir_env_vars = [
+        "CLAUDE_PROJECT_DIR",
+        "QODER_PROJECT_DIR",
+        "CODEBUDDY_PROJECT_DIR",
+        "FACTORY_PROJECT_DIR",
+        "CURSOR_PROJECT_DIR",
+        "GEMINI_PROJECT_DIR",
+        "KIRO_PROJECT_DIR",
+        "COPILOT_PROJECT_DIR",
+        "TRAE_PROJECT_DIR",
+    ]
+    project_dir = None
+    for var in project_dir_env_vars:
+        val = os.environ.get(var)
+        if val:
+            project_dir = Path(_normalize_windows_shell_path(val)).resolve()
+            break
+    if project_dir is None:
+        project_dir = Path(_normalize_windows_shell_path(hook_input.get("cwd", "."))).resolve()
+
+    trellis_dir = project_dir / ".trellis"
+    context_key = _resolve_context_key(trellis_dir, hook_input)
+    _persist_context_key_for_bash(context_key)
+
+    # Load config for scope filtering and legacy detection
+    is_mono, packages, scope_config, task_pkg, default_pkg = _load_trellis_config(
+        trellis_dir,
+        hook_input,
+    )
+    allowed_pkgs = _resolve_spec_scope(is_mono, packages, scope_config, task_pkg, default_pkg)
+
+    output = StringIO()
+
+    spec_index_paths = _collect_spec_index_paths(trellis_dir, allowed_pkgs)
+
+    output.write("""<session-context>
+Trellis compact SessionStart context. Use it to orient the session; load details on demand.
+</session-context>
+
+""")
+    output.write(FIRST_REPLY_NOTICE)
+    output.write("\n\n")
+
+    # Legacy migration warning
+    legacy_warning = _check_legacy_spec(trellis_dir, is_mono, packages)
+    if legacy_warning:
+        output.write(f"<migration-warning>\n{legacy_warning}\n</migration-warning>\n\n")
+
+    output.write("<current-state>\n")
+    output.write(_build_compact_current_state(trellis_dir, hook_input, spec_index_paths))
+    output.write("\n</current-state>\n\n")
+
+    output.write("<trellis-workflow>\n")
+    output.write(_build_workflow_overview(trellis_dir / "workflow.md"))
+    output.write("\n</trellis-workflow>\n\n")
+
+    output.write("<guidelines>\n")
+    output.write(
+        "Task context order for implementation/check: jsonl entries -> `prd.md` -> "
+        "`design.md if present` -> `implement.md if present`. Missing optional artifacts "
+        "are skipped for lightweight tasks.\n\n"
+    )
+
+    if spec_index_paths:
+        output.write("## Available indexes (read on demand)\n")
+        for p in spec_index_paths:
+            output.write(f"- {p}\n")
+        output.write("\n")
+
+    output.write(
+        "Discover more via: "
+        "`python ./.trellis/scripts/get_context.py --mode packages`\n"
+    )
+    output.write("</guidelines>\n\n")
+
+    # Check task status and inject structured tag
+    task_status = _get_task_status(trellis_dir, hook_input)
+    output.write(f"<task-status>\n{task_status}\n</task-status>\n\n")
+
+    output.write("""<ready>
+Context loaded. Follow <task-status>. Load workflow/spec/task details only when needed.
+</ready>""")
+
+    context_text = output.getvalue()
+
+    # Kiro (CLI trellis agent agentSpawn) adds a hook's stdout directly to the
+    # conversation context — no JSON envelope. Emit the bare overview text.
+    # Conditionally isolated: all other platforms keep the JSON path below.
+    if _detect_platform(hook_input) == "kiro":
+        print(context_text, flush=True)
+        return
+
+    result = {
+        # Claude Code / Qoder / CodeBuddy / Droid / Gemini / Copilot format
+        "hookSpecificOutput": {
+            "hookEventName": "SessionStart",
+            "additionalContext": context_text,
+        },
+        # Cursor sessionStart format (top-level snake_case per Cursor docs)
+        "additional_context": context_text,
+    }
+
+    # Output JSON - stdout is already configured for UTF-8
+    print(json.dumps(result, ensure_ascii=False), flush=True)
+
+
+if __name__ == "__main__":
+    main()

.claude/hooks/statusline.py

@@ -0,0 +1,324 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Trellis StatusLine — project-level status display for Claude Code.
+
+Reads Claude Code session JSON from stdin + Trellis task data from filesystem.
+Outputs 1-2 lines:
+  With active task:  [P1] Task title (status)  +  info line
+  Without task:      info line only
+Info line: model · ctx% · branch · duration · developer · tasks · rate limits
+When COLUMNS (injected by Claude Code v2.1.153+) is too narrow for the info
+line, the rate-limit segments move to their own line via an explicit "\n".
+"""
+from __future__ import annotations
+
+import json
+import os
+import re
+import subprocess
+import sys
+import time
+from datetime import datetime
+from pathlib import Path
+
+# Fix: Windows Python defaults to GBK encoding, which corrupts UTF-8
+# characters like the middle dot (·). Wrap stdout/stderr with UTF-8.
+if sys.platform == "win32":
+    for stream in (sys.stdout, sys.stderr):
+        reconfigure = getattr(stream, "reconfigure", None)
+        if callable(reconfigure):
+            reconfigure(encoding="utf-8", errors="replace")
+
+
+def _read_text(path: Path) -> str:
+    try:
+        return path.read_text(encoding="utf-8").strip()
+    except (FileNotFoundError, PermissionError, OSError):
+        return ""
+
+
+def _read_json(path: Path) -> dict:
+    text = _read_text(path)
+    if not text:
+        return {}
+    try:
+        return json.loads(text)
+    except (json.JSONDecodeError, ValueError):
+        return {}
+
+
+def _normalize_task_ref(task_ref: str) -> str:
+    normalized = task_ref.strip()
+    if not normalized:
+        return ""
+
+    path_obj = Path(normalized)
+    if path_obj.is_absolute():
+        return str(path_obj)
+
+    normalized = normalized.replace("\\", "/")
+    while normalized.startswith("./"):
+        normalized = normalized[2:]
+
+    if normalized.startswith("tasks/"):
+        return f".trellis/{normalized}"
+
+    return normalized
+
+
+def _resolve_task_dir(trellis_dir: Path, task_ref: str) -> Path:
+    normalized = _normalize_task_ref(task_ref)
+    path_obj = Path(normalized)
+    if path_obj.is_absolute():
+        return path_obj
+    if normalized.startswith(".trellis/"):
+        return trellis_dir.parent / path_obj
+    return trellis_dir / "tasks" / path_obj
+
+
+def _find_trellis_dir() -> Path | None:
+    """Walk up from cwd to find .trellis/ directory."""
+    current = Path.cwd()
+    for parent in [current, *current.parents]:
+        candidate = parent / ".trellis"
+        if candidate.is_dir():
+            return candidate
+    return None
+
+
+def _get_current_task(trellis_dir: Path) -> dict | None:
+    """Load current task info through Trellis' active task resolver."""
+    return _get_current_task_for_input(trellis_dir, {})
+
+
+def _get_current_task_for_input(trellis_dir: Path, cc_data: dict) -> dict | None:
+    """Load current task info for the Claude Code session JSON."""
+    scripts_dir = trellis_dir / "scripts"
+    if str(scripts_dir) not in sys.path:
+        sys.path.insert(0, str(scripts_dir))
+    try:
+        from common.active_task import resolve_active_task  # type: ignore[import-not-found]
+    except Exception:
+        return None
+
+    active = resolve_active_task(trellis_dir.parent, cc_data, platform="claude")
+    if not active.task_path:
+        return None
+
+    task_path = _resolve_task_dir(trellis_dir, active.task_path)
+    if active.stale:
+        return {
+            "title": task_path.name,
+            "status": "stale",
+            "priority": "P?",
+            "source": active.source,
+        }
+
+    task_data = _read_json(task_path / "task.json")
+    if not task_data:
+        return None
+
+    return {
+        "title": task_data.get("title") or task_data.get("name") or "unknown",
+        "status": task_data.get("status", "unknown"),
+        "priority": task_data.get("priority", "P2"),
+        "source": active.source,
+    }
+
+
+def _count_active_tasks(trellis_dir: Path) -> int:
+    """Count non-archived task directories with valid task.json."""
+    tasks_dir = trellis_dir / "tasks"
+    if not tasks_dir.is_dir():
+        return 0
+    count = 0
+    for d in tasks_dir.iterdir():
+        if d.is_dir() and d.name != "archive" and (d / "task.json").is_file():
+            count += 1
+    return count
+
+
+def _get_developer(trellis_dir: Path) -> str:
+    content = _read_text(trellis_dir / ".developer")
+    if not content:
+        return "unknown"
+    for line in content.splitlines():
+        if line.startswith("name="):
+            return line[5:].strip()
+    return content.splitlines()[0].strip() or "unknown"
+
+
+def _get_git_branch() -> str:
+    try:
+        result = subprocess.run(
+            ["git", "branch", "--show-current"],
+            capture_output=True, text=True, timeout=3,
+        )
+        return result.stdout.strip() if result.returncode == 0 else ""
+    except (FileNotFoundError, subprocess.TimeoutExpired):
+        return ""
+
+
+def _format_ctx_size(size: int) -> str:
+    if size >= 1_000_000:
+        return f"{size // 1_000_000}M"
+    if size >= 1_000:
+        return f"{size // 1_000}K"
+    return str(size)
+
+
+def _format_duration(ms: int) -> str:
+    secs = ms // 1000
+    hours, remainder = divmod(secs, 3600)
+    mins = remainder // 60
+    if hours > 0:
+        return f"{hours}h{mins}m"
+    return f"{mins}m"
+
+
+def _format_remaining(secs: int) -> str:
+    if secs <= 0:
+        return ""
+    days, remainder = divmod(secs, 86400)
+    hours, remainder = divmod(remainder, 3600)
+    mins = remainder // 60
+    if days > 0:
+        return f"{days}d{hours}h"
+    if hours > 0:
+        return f"{hours}h{mins}m"
+    return f"{mins}m"
+
+
+def _parse_resets_at(value: object) -> int:
+    """`resets_at` is epoch seconds (int/float, possibly stringified) or an
+    ISO-8601 timestamp depending on Claude Code version. Return epoch
+    seconds, or 0 when absent/unparseable (countdown is then omitted)."""
+    if isinstance(value, (int, float)):
+        return int(value)
+    if isinstance(value, str) and value:
+        try:
+            return int(float(value))
+        except ValueError:
+            pass
+        try:
+            parsed = datetime.fromisoformat(value.replace("Z", "+00:00"))
+            return int(parsed.timestamp())
+        except ValueError:
+            pass
+    return 0
+
+
+def _rate_limit_part(label: str, window: dict, now: int) -> str:
+    try:
+        pct = int(float(window.get("used_percentage")))  # pyright: ignore[reportArgumentType]
+    except (TypeError, ValueError):
+        return ""
+    part = f"{label} {pct}%"
+    remaining = _format_remaining(_parse_resets_at(window.get("resets_at")) - now)
+    if remaining:
+        part += f" \033[90m(reset {remaining})\033[0m"
+    return part
+
+
+_ANSI_RE = re.compile(r"\x1b\[[0-9;]*m")
+
+
+def _visible_len(s: str) -> int:
+    """Length of s with ANSI escape sequences stripped."""
+    return len(_ANSI_RE.sub("", s))
+
+
+def _terminal_width() -> int | None:
+    """Terminal width from the COLUMNS env var, or None.
+
+    The statusline stdin JSON has no width field and stdout is a pipe, so
+    the COLUMNS env var (injected by Claude Code v2.1.153+) is the only
+    width signal. Absent or malformed values return None."""
+    try:
+        width = int(os.environ.get("COLUMNS", ""))
+    except ValueError:
+        return None
+    return width if width > 0 else None
+
+
+def main() -> None:
+    # Read Claude Code session JSON from stdin
+    try:
+        cc_data = json.loads(sys.stdin.read())
+    except (json.JSONDecodeError, ValueError):
+        cc_data = {}
+
+    trellis_dir = _find_trellis_dir()
+    SEP = " \033[90m·\033[0m "
+
+    # --- Trellis data ---
+    task = _get_current_task_for_input(trellis_dir, cc_data) if trellis_dir else None
+    dev = _get_developer(trellis_dir) if trellis_dir else ""
+    task_count = _count_active_tasks(trellis_dir) if trellis_dir else 0
+
+    # --- CC session data ---
+    model = cc_data.get("model", {}).get("display_name", "?")
+    ctx_pct = int(cc_data.get("context_window", {}).get("used_percentage") or 0)
+    ctx_size = _format_ctx_size(cc_data.get("context_window", {}).get("context_window_size") or 0)
+    duration = _format_duration(cc_data.get("cost", {}).get("total_duration_ms") or 0)
+    branch = _get_git_branch()
+
+    # Avoid "Opus 4.6 (1M context) (1M)"
+    if re.search(r"\d+[KMG]\b", model, re.IGNORECASE):
+        model_label = model
+    else:
+        model_label = f"{model} ({ctx_size})"
+
+    # Context % with color
+    if ctx_pct >= 90:
+        ctx_color = "\033[31m"
+    elif ctx_pct >= 70:
+        ctx_color = "\033[33m"
+    else:
+        ctx_color = "\033[32m"
+
+    # Build info line: model · ctx · branch · duration · dev · tasks [· rate limits]
+    parts = [
+        model_label,
+        f"ctx {ctx_color}{ctx_pct}%\033[0m",
+    ]
+    if branch:
+        parts.append(f"\033[35m{branch}\033[0m")
+    parts.append(duration)
+    if dev:
+        parts.append(f"\033[32m{dev}\033[0m")
+    if task_count:
+        parts.append(f"{task_count} task(s)")
+
+    now = int(time.time())
+    rate_limits = cc_data.get("rate_limits", {})
+    rate_parts: list[str] = []
+    for label, key in (("5h", "five_hour"), ("7d", "seven_day")):
+        part = _rate_limit_part(label, rate_limits.get(key) or {}, now)
+        if part:
+            rate_parts.append(part)
+
+    info_line = SEP.join(parts + rate_parts)
+
+    # Output: task line (only if active) + info line
+    if task:
+        source = str(task.get("source") or "")
+        source_tag = "session" if source.startswith("session:") else source
+        source_suffix = f" \033[90m[{source_tag}]\033[0m" if source_tag else ""
+        print(f"\033[36m[{task['priority']}]\033[0m {task['title']} \033[33m({task['status']})\033[0m{source_suffix}")
+
+    # Claude Code's status-bar height counts only "\n" characters, so a
+    # visually wrapped long line misaligns rows. When the host provides a
+    # terminal width and the info line would overflow, split the rate-limit
+    # segments onto their own line with an explicit "\n" instead.
+    width = _terminal_width()
+    if width is not None and rate_parts and _visible_len(info_line) > width:
+        print(SEP.join(parts))
+        print(SEP.join(rate_parts))
+    else:
+        print(info_line)
+
+
+if __name__ == "__main__":
+    main()