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fix(ai): drop deprecated fine-grained-tool-streaming beta header, use eager_input_streaming per-tool

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Replace the deprecated global anthropic-beta header with per-tool
eager_input_streaming: true. Fix empty anthropic-beta header causing
400 errors on models with no beta features.

fixes #3175
This commit is contained in:
Mario Zechner
2026-04-21 23:53:23 +02:00
parent e58d631c89
commit b0217ca6f8
1 changed files with 4 additions and 3 deletions
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7
packages/ai/src/providers/anthropic.ts
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@@ -762,7 +762,7 @@ function createClient(
return { client, isOAuthToken: false }; return { client, isOAuthToken: false };
} }
const betaFeatures = ["fine-grained-tool-streaming-2025-05-14"]; const betaFeatures: string[] = [];
if (needsInterleavedBeta) { if (needsInterleavedBeta) {
betaFeatures.push("interleaved-thinking-2025-05-14"); betaFeatures.push("interleaved-thinking-2025-05-14");
} }
@@ -778,7 +778,7 @@ function createClient(
{ {
accept: "application/json", accept: "application/json",
"anthropic-dangerous-direct-browser-access": "true", "anthropic-dangerous-direct-browser-access": "true",
"anthropic-beta": `claude-code-20250219,oauth-2025-04-20,${betaFeatures.join(",")}`, "anthropic-beta": ["claude-code-20250219", "oauth-2025-04-20", ...betaFeatures].join(","),
"user-agent": `claude-cli/${claudeCodeVersion}`, "user-agent": `claude-cli/${claudeCodeVersion}`,
"x-app": "cli", "x-app": "cli",
}, },
@@ -799,7 +799,7 @@ function createClient(
{ {
accept: "application/json", accept: "application/json",
"anthropic-dangerous-direct-browser-access": "true", "anthropic-dangerous-direct-browser-access": "true",
"anthropic-beta": betaFeatures.join(","), ...(betaFeatures.length > 0 ? { "anthropic-beta": betaFeatures.join(",") } : {}),
}, },
model.headers, model.headers,
optionsHeaders, optionsHeaders,
@@ -1091,6 +1091,7 @@ function convertTools(
return { return {
name: isOAuthToken ? toClaudeCodeName(tool.name) : tool.name, name: isOAuthToken ? toClaudeCodeName(tool.name) : tool.name,
description: tool.description, description: tool.description,
eager_input_streaming: true,
input_schema: { input_schema: {
type: "object", type: "object",
properties: schema.properties ?? {}, properties: schema.properties ?? {},