Files
mengyastore/.claude/hooks/session-start.py

845 lines
29 KiB
Python

#!/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()