[gold-silver-copper]

Description

Follow-up to #3241. When a tool schema has a root anyOf/oneOf/allOf, the Anthropic provider moves it under {"not": {"not": ...}} and repoints local references like #/anyOf/0 to #/not/not/anyOf/0. The walk that finds those references skipped two keywords that hold subschemas: draft-07 dependencies and contentSchema (2019-09 and later). A reference inside either kept pointing at the old place, which no longer exists.

Before (sent to Anthropic):

{"type": "object", "dependencies": {"x": {"$ref": "#/anyOf/0"}}, "not": {"not": {"anyOf": [...]}}}

After:

{"type": "object", "dependencies": {"x": {"$ref": "#/not/not/anyOf/0"}}, "not": {"not": {"anyOf": [...]}}}

The walk now follows dependencies like dependentSchemas, and contentSchema like propertyNames. A dependency that is a list of property names ("y": ["x"]) is not a schema and stays as written.

Found by a read-only fix-check review of #3241's late commits (dependencies) and by this PR's reviewers (contentSchema); the completeness reviewer found no other subschema keyword missing across draft-04 to 2020-12.

Not changed, and left as #3241 documents it: a reference whose first pointer token is percent-encoded (#/%61nyOf/0) is not repointed. No schema generator writes that.

Changelog

• (anthropic) a reference inside a draft-07 dependencies subschema or a contentSchema into a root anyOf/oneOf/allOf now follows it under the double not.

Migration

None.

Type of change

• Bug fix
• New feature
• Breaking change
• Documentation update

Testing

Failing tests first (commits 1 and 3): new cases in providers::anthropic::completion::tests::pointer_references_into_moved_keywords_follow_them. On main:

panicked at crates/rig-core/src/providers/anthropic/completion/tests.rs:535:5:
assertion `left == right` failed
  left: ... "dependencies": Object {"x": Object {"$ref": String("#/anyOf/0")}, ...
 right: ... "dependencies": Object {"x": Object {"$ref": String("#/not/not/anyOf/0")}, ...

The contentSchema case failed the same way at commit 2 (contentSchema: {"$ref": "#/anyOf/0"} left as written, tests.rs:555). Both pass with commits 2 and 4.

• cargo nextest run --locked --profile local -p rig-core anthropic (176 passed)
• cargo clippy --locked -p rig-core --all-targets -- -D warnings

Production lines: +6 / -3. Test lines: +34.

Try it:

cd ~/code/rig && git fetch origin && git switch --detach origin/fix/anthropic-repoint-dependencies && cargo nextest run -p rig-core pointer_references_into_moved