fix(anthropic): align SDK v1 requests and effort controls - #1347
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Included review availability: Your plan provides up to 8 included reviews per hour; 7 remain after this review. WalkthroughChangesThe Anthropic dependency now requires SDK v1. Deprecated sampling parameters use Anthropic provider behaviour
Suggested reviewers: Merge Risk: 🔵 Low · up to This updates Anthropic SDK v1 request serialization and validation behavior. The remaining risk is that the httpx2 test import may not be available in all test environments, which could prevent collection of the affected provider tests. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 48.57% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 35 functions across 9 files. (1 skipped: 1 unsupported.) ✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
In `@src/any_llm/providers/anthropic/base.py`:
- Around line 347-355: Update the structured-output docstring associated with
the Anthropic message flow to document that providers using the messages.create
fallback may return a MessageResponse, after which AnyLLM.amessages reconstructs
a ParsedMessage at the base layer for every non-None output_format, including
Pydantic types. Keep the documented parsed_output preservation behavior
accurate.
In `@tests/unit/providers/test_anthropic_batch.py`:
- Around line 558-594: Extend the Anthropic batch tests around _acreate_batch to
cover each new validation branch: non-dict bodies must raise InvalidRequestError
matching “must be an object”, top_k must raise UnsupportedParameterError, and
stream=True must raise InvalidRequestError matching “stream=True”. Parameterize
the cases if appropriate, import InvalidRequestError, and verify the batch API
mock is not called when validation fails.
In `@tests/unit/providers/test_anthropic_provider.py`:
- Around line 111-122: Parametrize
test_completion_rejects_unsupported_temperature to cover both unsupported
parameters, temperature and top_p, passing each through CompletionParams and
matching the corresponding parameter name in UnsupportedParameterError while
preserving the assertion that messages.create is not called.
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In `@src/any_llm/providers/anthropic/base.py`:
- Around line 334-336: Update the unsupported_sampling construction in the
Anthropic parameter validation to access MessagesParams fields directly via
params.temperature, params.top_p, and params.top_k instead of getattr,
preserving the existing filtering and UnsupportedParameterError behavior.
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In `@tests/unit/providers/test_anthropic_messages.py`:
- Line 10: Restore the standard httpx dependency import in the test module by
replacing the httpx2 alias with import httpx, so test collection uses the
declared package.
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Inline comments:
In `@tests/unit/providers/test_anthropic_provider.py`:
- Around line 928-931: Move the anthropic.types symbols and
any_llm.providers.anthropic.utils helpers used by the added tests into the
module-level import block in tests/unit/providers/test_anthropic_provider.py,
and remove their imports from the test bodies while preserving all test
behavior.
- Around line 133-143: Add a parameterized async test alongside
test_completion_rejects_duplicate_sampling_in_extra_body to call
AnthropicProvider._acompletion with temperature and non-dict extra_body values,
such as a string and integer, and assert InvalidRequestError with the
“extra_body must be an object” message.
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In `@tests/unit/providers/test_anthropic_provider.py`:
- Line 1158: Extend the streaming tests around
test_streaming_message_stop_emits_all_replay_blocks with a
redacted-thinking-only stream case that has no signature. Assert the emitted
result preserves thinking_blocks and omits signature, covering the
signature-absent branch without changing the existing signed-thinking coverage.
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In `@tests/unit/providers/test_anthropic_provider.py`:
- Around line 1491-1492: Rename the non-streaming empty-thinking test to reflect
that reasoning metadata and Anthropic thinking blocks are expected, and update
its docstring to describe this intended behavior rather than claiming no extra
content is stored.
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In `@src/any_llm/providers/anthropic/utils.py`:
- Around line 171-179: Add tests for the response_blocks validation in the
relevant Anthropic utility test suite: verify a non-list
extra_content.anthropic.response_blocks value and a list containing an item
without a string type each raise InvalidRequestError. Use the existing
request-validation test patterns and preserve coverage of valid typed block
inputs.
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In `@tests/unit/providers/test_anthropic_provider.py`:
- Around line 1606-1608: Update the test’s docstring near the assertion on
result.choices[0].message.extra_content to state that redacted thinking blocks
are preserved in thinking_blocks, matching the asserted anthropic payload.
- Around line 1755-1761: Move the inline anthropic.types imports and the
_content_block_delta, _content_block_start_delta, and _AnthropicStreamState
imports into the module-level import blocks. Add CitationCharLocation,
CitationsDelta, ServerToolUseBlock, InputJSONDelta, and TextBlock to the
top-level anthropic.types imports, then remove the duplicate local imports at
the affected test locations.
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In `@tests/unit/providers/test_anthropic_messages.py`:
- Line 1086: Update the test for the native parse path around
BaseAnthropicProvider._amessages to include top_p and top_k inputs, then assert
that temperature, top_p, and top_k are all absent from the messages.parse kwargs
rather than only checking extra_body.
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## Description Constrain the supported Anthropic SDK range to >=0.119.0,<1 until the SDK 1.x provider migration is complete (#1370). Anthropic SDK 1.x removed temperature, top_p, and top_k from the Messages method signatures while the current provider still forwards those parameters directly. This causes common completion and native Messages requests to fail before reaching the transport. Version 0.119 and later retain the typed refusal and container functionality introduced through #1328. This change: - applies the upper bound to the core, Vertex Anthropic, and Azure Anthropic dependency declarations - restores Anthropic transport tests to httpx, which is the transport used by SDK 0.x - adds real SDK transport coverage for completion, native Messages, and streaming sampling parameters - covers container and service tier serialization through the concrete SDK client The upper bound can be removed when the SDK 1.x migration in #1347 is complete and released. ## PR Type - 🐛 Bug Fix ## Relevant issues - Preserves the functionality added in #1328 - Follow-up migration: #1347 ## Checklist - [x] I understand the code I am submitting. - [x] I have added unit tests that prove my fix/feature works - [x] I have run this code locally and verified it fixes the issue. - [x] New and existing tests pass locally - [x] Documentation was updated where necessary (no user-facing API or behavior documentation changed) - [x] I have read and followed the [contribution guidelines](https://github.com/mozilla-ai/any-llm/blob/main/CONTRIBUTING.md) - [x] **AI Usage:** - [ ] No AI was used. - [ ] AI was used for drafting/refactoring. - [x] This is fully AI-generated. ## AI Usage Information - AI Model used: GPT-5 - AI Developer Tool used: Codex - Any other info you would like to share: The Anthropic v1 migration notes were reviewed and the sampling-signature failure was reproduced against the concrete SDK client before adding the temporary compatibility bound. When answering questions by the reviewer, please respond yourself, do not copy/paste the reviewer comments into an AI system and paste back its answer. We want to discuss with you, not your AI :) - [x] I am an AI Agent filling out this form (check box if true) <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Compatibility** * Updated the supported Anthropic SDK range to versions from `0.119.0` up to, but not including, `1.0.0`. * This compatibility range applies to core Anthropic integrations and the Vertex AI and Azure optional integrations. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
Raise the minimum Anthropic dependency to 1.0.0, the first formal release built on HTTPX2. No later v1 feature is required by this implementation. SDK v1 removes temperature, top_p, and top_k from Messages method signatures. Preserve the binding’s pre-existing legacy-model inputs through the documented extra_body extension. Match the SDK merge contract by giving caller extra_body values precedence and by retaining its TypeError for non-mapping values. Update the real-client transport and generated container-skill assertion so the same contract suite runs on both Anthropic 1.0.0 and the current 1.3.0 release.
Anthropic SDK v1 rejects bytes header values. Stop decoding a bytes-valued anthropic-beta header inside the binding so the official SDK retains ownership of validation and rejects the request before transport. The regression uses a real SDK client and confirms that neither Anthropic 1.0.0 nor 1.3.0 sends an HTTP request for this invalid input.
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I will limit the review to the SDK v1 migration, deprecated sampling through ✅ Action performedFull review finished. |
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In `@pyproject.toml`:
- Line 15: Update the Anthropic SDK dependency constraints for the core, Vertex,
and Azure packages to require versions greater than or equal to 1.0.0 and less
than 2. Preserve the existing lower bounds while adding the upper bound to all
three constraints.
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Follow the Anthropic v1.3.0 migration guide range of anthropic>=1,<2 so an unverified future major cannot enter the core, Azure, or Vertex provider environments.
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Current Anthropic documentation defines output_config.effort and thinking as independent controls. Send explicit effort without also forcing adaptive thinking, while preserving auto omission and explicit none as disabled.
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IceCodeNew consolidated this work into #1379. The replacement PRs target mozilla-ai/main and retain the accepted implementation and tests in clean per-layer commits. Dependent layers stay draft until their predecessors merge and the resulting upstream diff is revalidated. Closing this superseded PR to avoid duplicate review; the original branch, commits and local audit evidence are preserved. Prepared by Amp for IceCodeNew. |
…request data (#1379) ## Description Five fixes in the Anthropic provider, all reproducible against the pinned SDK (0.125.0): - `_convert_tool_spec` rebuilt `input_schema` from `type`/`properties`/`required` only, dropping `$defs`, `additionalProperties` and every other keyword. Any tool schema generated from a Pydantic model with a nested model shipped a dangling `$ref`. - `build_parsed_message` matched only `TextBlock`, so `amessages(output_format=<schema dict>, betas=[...])` raised a pydantic `ValidationError` instead of returning a `ParsedMessage`. - `_convert_messages_for_anthropic` rewrote the caller's message dicts in place. - `_convert_params` mutated a caller-supplied `output_config` when `reasoning_effort` was set. - A named `tool_choice` ignored `parallel_tool_calls=False`. Also narrows the stream-converter and `_convert_response` signatures away from `Any`, and documents the `ParsedMessage` / `ParsedBetaMessage` return split. Anthropic SDK 1.x compatibility is out of scope and stays with #1370. The sampling `extra_body` bridge, the `httpx2` test transport and the relaxed container-skill assertion were removed here and recorded on that issue. ## PR Type Bug fix. ## Relevant issues Supersedes #1347. SDK 1.x migration tracked in #1370. ## Checklist - [ ] I understand the code I am submitting. (Human author confirmation pending.) - [x] I have added unit tests that prove my fix/feature works - [x] I have run this code locally and verified it fixes the issue. - [x] New and existing applicable tests pass locally - [x] Documentation was updated where necessary - [x] I have read and followed the [contribution guidelines](https://github.com/mozilla-ai/any-llm/blob/main/CONTRIBUTING.md) - [x] **AI Usage:** - [ ] No AI was used. - [x] AI was used for drafting/refactoring. - [ ] This is fully AI-generated. ## AI Usage Information - AI Model used: GPT-6 Astra Medium (original branch), Claude Opus 5 (maintainer edits) - AI Developer Tool used: Amp, Claude Code - [x] I am an AI Agent filling out this form (check box if true) <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit - **Documentation** - Clarified sampling parameter guidance for current Anthropic Claude models. - Documented return types for structured, unstructured, typed beta, and streaming responses. - **Bug Fixes** - Improved Anthropic streaming event handling and response conversion. - Preserved complete tool schemas, including extension fields. - Correctly applied reasoning settings without modifying caller-provided configuration. - Improved handling of beta text blocks and list-based message content. - Ensured parallel tool-call settings are translated correctly. <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Co-authored-by: Amp clean-room assembly <cleanroom@localhost> Co-authored-by: njbrake <33383515+njbrake@users.noreply.github.com> Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Description
This draft contains the Anthropic SDK v1 migration, its request regressions, and one directly related Anthropic effort correction. It replaces the previous 33-commit, +1,934/-406 mixed branch with four signed commits across 9 files, +165/-45 lines.
The owning changes are:
anthropic>=1.0.0,<2, following the v1.3.0 migration guide's supported major range, with 1.0.0 as the first formal release backed byhttpx2>=2,<3;temperature,top_p, andtop_kfields for legacy models through the SDK migration guide'sextra_bodyextension;extra_bodycontains a sampling key, and leave non-object values for the SDK itself to reject;anthropic-betaheaders so SDK v1 rejects them as documented;httpx2transport tests compatible with the minimum and latest SDK releases;output_config.effortindependent fromthinking, as required by the current service documentation, instead of enabling adaptive thinking as a side effect of every explicit effort.This PR does not add a deprecated public parameter. Response replay, custom stream state, media/file validation, Batch expansion, copied SDK fixtures, and pure coverage additions were removed from this PR. They require separate, independently justified responsibilities.
Production/config changes are +71/-24 lines. Necessary regression tests are +94/-21 lines. The SDK migration commit is +128/-32. The header-validation commit is +32/-10. The dependency-range review fix changes three declarations without increasing the final diff. The effort correction is +5/-3. All commits are within the preferred review size.
Contract sources
Checked live on 2026-09-04:
The service documentation marks all three sampling controls deprecated. For models released after Claude Opus 4.6,
temperatureaccepts only1.0,top_paccepts only values at least0.99, andtop_krejects every value. SDK v1 removes them from Messages method signatures and documentsextra_bodyfor callers targeting older models. Any-llm exposed these fields before this PR, so this change preserves an existing compatibility contract without advertising them as current-model controls.The current effort and thinking guides define
output_config.effortandthinkingas separate controls. Effort works with or without thinking. Explicitlow,medium,high,xhigh, ormaxtherefore sends onlyoutput_config.effort; normalizedminimalmaps to Anthropic's lowest level,low.autopreserves both provider defaults, while explicitnonesendsthinking.type=disabled.Anthropic's SDK is MIT licensed. This rebuilt branch copies no upstream fixture or implementation. Fantasy was considered only as architecture input; no Fantasy code, control flow, fixture, or assertion sequence is copied or closely adapted.
Verification
uv run pre-commit run --all-files: passed, including Ruff, Ruff format, strict mypy over 287 source files, codespell, and repository hygiene hooks;ruff check --select ALLon all changed files: no finding on an added production line. Added-test findings are pytestassert(S101) and direct contract testing of private provider entry points (SLF001);extra_bodyand bytes beta-header checks use real official SDK clients and confirm each SDK rejects before transport;top_kto leak into the native parse kwargs made the parse-path regression fail on the new exclusion assertion, while preserving the independently checkedextra_bodyvalue;thinking.type=adaptiveside effect fails the two tests that independently require absence for plain effort and structured-output plus effort.Anyboundaries and parsed-return cast produced the same four strict-mypy overload errors under SDK 1.0.0 and 1.3.0. Removing them would require duplicated control flow or a local copy of generated SDK signatures.The four commits have valid configured SSH signatures. The branch is rebased on current upstream
main.No
ANTHROPIC_API_KEYorANTHROPIC_API_BASEis available in the verification orb. Live authentication, service errors, timeout, and streaming remain unverified. Exact-head CodeRabbit review is pending for2043497d6783d7fe7d698b10db2f4d2f78c127d6; the prior review does not prove this head. This PR remains not ready for review and does not claim complete Anthropic alignment.PR Type
Relevant issues
The HTTPX2 migration previously proposed in closed PR #1356 is reimplemented here without retaining that PR's mixed history.
Checklist
AI Usage Information
Reviewer claims are independently checked against current official documentation and immutable SDK source before changes are made.
Summary by CodeRabbit
Bug Fixes
temperature,top_p, andtop_k) are now forwarded correctly through request metadata.Documentation