[DEPRECATED] v13.0.0

This release has been deprecated, please use v12.8.1 as we work on v14.

13.0.0 (2026-01-06)

Full Changelog: v12.8.1...v13.0.0

⚠ BREAKING CHANGES

• mcp: remove deprecated tool schemes

Features

• mcp: add detail field to docs search tool (144248d)
• mcp: add docs search tool (303bf2d)
• mcp: add mcp bundles to build script (55f7e82)
• mcp: add option for including docs tools (af5c82e)
• mcp: add typescript check to code execution tool (dae1e4a)
• mcp: enable experimental docs search tool (f8091f8)
• mcp: enable optional code execution tool on http mcp servers (1e1aaf3)
• mcp: handle code mode calls in the Stainless API (e0bd156)
• mcp: return logs on code tool errors (77c0a59)
• page_url is now an advanced dimension (#376) (1ef7ae2)
• Rendition Change Dimensions/Metrics (#375) (00d4537)
• Support language detection for generated subtitles (#380) (ca79abc)

Bug Fixes

• ci: set permissions for DXT publish action (04e7d73)
• coerce nullable values to undefined (90b915b)
• mcp: add client instantiation options to code tool (2a28cbb)
• mcpb: pin @anthropic-ai/mcpb version (ea4015b)
• mcp: correct code tool API endpoint (7f4ab44)
• mcp: correct code tool api output types (470b862)
• mcp: fix cli argument parsing logic (4033ba5)
• mcp: fix options parsing (b04c732)
• mcp: fix some response schemas used for jq filtering (c6874d5)
• mcp: fix uploading dxt release assets (cca7f9d)
• mcp: pass base url to code tool (1003ee4)
• mcp: resolve a linting issue in server code (e59a137)
• mcp: return correct lines on typescript errors (cd783ca)
• mcp: return tool execution error on api error (d7a5cc0)
• mcp: return tool execution error on jq failure (b3dd62a)
• mcp: update cloudflare worker host page (1f59940)
• mcp: use raw responses for binary content (52ecb08)

Performance Improvements

• faster formatting (c92853e)

Chores

• break long lines in snippets into multiline (6417def)
• ci build action (427ccf3)
• codegen: internal codegen update (ea732c9)
• do not install brew dependencies in ./scripts/bootstrap by default (f4505bc)
• extract some types in mcp docs (e51a4ca)
• internal: codegen related update (aed512c)
• internal: codegen related update (bdaf76e)
• internal: codegen related update (77d0d13)
• internal: codegen related update (0159371)
• internal: codegen related update (1086856)
• internal: codegen related update (126b23a)
• internal: codegen related update (ece03e1)
• internal: fix incremental formatting in some cases (44dfd8d)
• internal: gitignore .mcpb files (08bb272)
• internal: grammar fix (it's -> its) (9cb5c52)
• internal: ignore .eslintcache (bee39de)
• internal: remove deprecated compilerOptions.baseUrl from tsconfig.json (a5e75a8)
• internal: use npm pack for build uploads (e51c1c5)
• internal: version bump (58594ad)
• internal: version bump (2f39518)
• mcp code tool explicit error message when missing a run function (ac3e901)
• mcp: add friendlier MCP code tool errors on incorrect method invocations (1bf1418)
• mcp: add line numbers to code tool errors (7f88a02)
• mcp: allow pointing docs_search tool at other URLs (1714aff)
• mcp: clarify http auth error (8dbb066)
• mcp: remove deprecated tool schemes (fecab51)
• mcp: rename dxt to mcpb (65504cc)
• mcp: update lockfile (1589f86)
• mcp: upgrade jq-web (23a249b)
• mcp: upload dxt as release asset (c7619b8)
• update lockfile (3ac5109)
• use latest @modelcontextprotocol/sdk (be3814d)
• use structured error when code execution tool errors (2aef926)

Documentation

• Clarification on Generated Subtitles behavior (#379) (44e0a74)
• Fix which fields can be patched in update-asset (#377) (71cd3ea)
• mcp: add a README button for one-click add to Cursor (bbf88a9)
• mcp: add a README link to add server to VS Code or Claude Code (380fb99)
• prominently feature MCP server setup in root SDK readmes (c703a81)
• Remove 7 day captions gen limitation and replace with link to docs (#373) (7769e44)
• update docs for hevc-as-standard (#371) (e692395)