Bump @anthropic-ai/sdk from 0.128.0 to 0.129.0

[dependabot]

Bumps @anthropic-ai/sdk from 0.128.0 to 0.129.0.

Release notes

Sourced from @​anthropic-ai/sdk's releases.

sdk: v0.129.0

0.129.0 (2026-09-28)

Full Changelog: sdk-v0.128.0...sdk-v0.129.0

Features

• api: add between_tools thinking type (ab51075)
• api: add claude-sonnet-5-5 (4e77366)
• api: add ClientToolUnion type for client-executed tools (2c1d2d7)
• api: add include_inherited and source to workspace rate limits (66e925e)
• api: add typed event type values to the Managed Agents events list filter (8ac4a26)
• api: cache diagnostics GA — diagnostics on Message / MessageCreateParams (5ba5f29)
• tools: optionally start tool calls while the reply streams (083969b)

Bug Fixes

• client: also send X-Stainless-Timeout for client-level timeouts (b84783b)
• client: send upload filenames as given, with no placeholder (f9d3e98)
• helpers: degrade between_tools thinking to disabled on fallback hops (#841) (edbbf05)
• internal: let bundlers drop unused classes with more than ten private-member assignments (67c7adb)
• streaming: show every complete array item and hold back unfinished numbers in partial tool input (#781) (5806588)

Performance Improvements

• streaming: drop the redundant iterSSEChunks layer (0357f81)
• streaming: take each string token as one slice in the partial JSON tokenizer (#255) (cdfb1e5)

Chores

• api: deprecate the betas param on GA models and completions methods (5c74e45)
• api: list the known model ids first in the Model types (9452822)
• ci: choose the CI runner by repository (33db1ec)
• docs: clarify that stream: true returns the raw event stream (4286c22)
• docs: make Managed Agents actor descriptions resource-neutral (15733f9)
• docs: restore the research-preview notice on the Dream type (b32f8ba)
• internal: move old constants around (0cd8edf)
• tests: add diagnostics to the parser test's Message fixtures (eb5ca58)
• tools: remove client-side compaction control (#802) (9c3e8a5)

Documentation

• api: prefer each field's own description over its shared type's (5193478)
• expand CLAUDE.md into a full contributor guide (98d2ddb)

Changelog

Sourced from @​anthropic-ai/sdk's changelog.

0.129.0 (2026-09-28)

Full Changelog: sdk-v0.128.0...sdk-v0.129.0

Features

• api: add between_tools thinking type (ab51075)
• api: add claude-sonnet-5-5 (4e77366)
• api: add ClientToolUnion type for client-executed tools (2c1d2d7)
• api: add include_inherited and source to workspace rate limits (66e925e)
• api: add typed event type values to the Managed Agents events list filter (8ac4a26)
• api: cache diagnostics GA — diagnostics on Message / MessageCreateParams (5ba5f29)
• tools: optionally start tool calls while the reply streams (083969b)

Bug Fixes

• client: also send X-Stainless-Timeout for client-level timeouts (b84783b)
• client: send upload filenames as given, with no placeholder (f9d3e98)
• helpers: degrade between_tools thinking to disabled on fallback hops (#841) (edbbf05)
• internal: let bundlers drop unused classes with more than ten private-member assignments (67c7adb)
• streaming: show every complete array item and hold back unfinished numbers in partial tool input (#781) (5806588)

Performance Improvements

• streaming: drop the redundant iterSSEChunks layer (0357f81)
• streaming: take each string token as one slice in the partial JSON tokenizer (#255) (cdfb1e5)

Chores

• api: deprecate the betas param on GA models and completions methods (5c74e45)
• api: list the known model ids first in the Model types (9452822)
• ci: choose the CI runner by repository (33db1ec)
• docs: clarify that stream: true returns the raw event stream (4286c22)
• docs: make Managed Agents actor descriptions resource-neutral (15733f9)
• docs: restore the research-preview notice on the Dream type (b32f8ba)
• internal: move old constants around (0cd8edf)
• tests: add diagnostics to the parser test's Message fixtures (eb5ca58)
• tools: remove client-side compaction control (#802) (9c3e8a5)

Documentation

• api: prefer each field's own description over its shared type's (5193478)
• expand CLAUDE.md into a full contributor guide (98d2ddb)

Commits

• bf20586 Merge pull request #1218 from anthropics/release-please--branches--main--chan...
• da41a5a chore: release main
• 3a79b93 codegen metadata
• 4e77366 feat(api): add claude-sonnet-5-5
• 2c1d2d7 feat(api): add ClientToolUnion type for client-executed tools
• f9d3e98 fix(client): send upload filenames as given, with no placeholder
• 8ac4a26 feat(api): add typed event type values to the Managed Agents events list filter
• 083969b feat(tools): optionally start tool calls while the reply streams
• 9505bf3 codegen metadata
• b84783b fix(client): also send X-Stainless-Timeout for client-level timeouts
• Additional commits viewable in compare view

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[dependabot]

Superseded by #44.