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test: add Anthropic Messages API conformance suite using the real SDK - #1278

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test/anthropic-sdk-conformance

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@sakibsadmanshajib sakibsadmanshajib commented Aug 28, 2026 •

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Summary

Adds a committed, runnable Anthropic Messages API conformance suite that drives the genuine, PyPI-published anthropic Python SDK (1.2.0, never a hand-rolled HTTP request) against edge-api's /v1/messages surface: packages/sdk-tests/python/tests/test_anthropic_messages.py, alongside the existing OpenAI-compatible suites in the same package and the same --profile test compose job.

No Claude model exists in Hive and none will be added (owner decision 2026-08-26, DeepSeek and Groq only). The suite exercises Hive's own aliases (hive-free, deepseek-v4-flash) through the Anthropic wire shape; a claude-* model name answering 404 is asserted as expected, correct behavior, not a gap (test_invalid_model_is_not_found_not_a_defect).

What it covers

  • messages.create: non-streaming and streaming
  • system as a plain string and as a typed content-block array with cache_control
  • multi-block content arrays
  • tools + every tool_choice form (auto, any, tool, none), a full tool-use -> tool-result round trip, disable_parallel_tool_use
  • sampling params (max_tokens, stop_sequences, metadata.user_id as typed kwargs; temperature/top_p/top_k via extra_body, see note below), thinking (documented as silently ignored, no configured provider supports it)
  • a vision/image content block
  • messages.count_tokens, models.list
  • streaming event sequence integrity (the SDK's own strict parser, not a hand-rolled one)
  • typed error classes for invalid model, bad params, auth failure, and an oversized (>4 MiB) body
  • a provider-identity leak guard on both success and error response bodies

No test is skipped for missing credentials (HIVE_API_KEY falls back to a literal that simply fails loudly with a real AuthenticationError, matching every other file in this package). HIVE_TOOLS_MODEL is added to the sdk-tests-py compose service (previously only sdk-tests-js had it) so the tool-use tests have a tools_supported alias to call; tools/lint-sdk-test-env-propagation.mjs covers this.

A note on the real, current Anthropic SDK

Running the actual SDK (not reasoning from memory) surfaced that messages.create() on anthropic==1.2.0 no longer exposes temperature, top_p, or top_k as typed keyword arguments at all -- they raise TypeError: unexpected keyword argument. The suite reaches them through the SDK's documented extra_body escape hatch instead, and pyproject.toml pins anthropic>=1.2.0,<2.0.0 so this stays version-matched to what was actually exercised.

Four real defects found, each filed and tracked as xfail(strict=False) (never silently skipped)

Each xfail carries the SDK call, the exact exception, and the issue number, and will fail the suite loudly (not silently regress) if the underlying bug is ever fixed without updating the test.

Two things specifically asked about

  1. Usage semantics: confirmed correct. ResponseUsage/StreamUsage use Anthropic-native EXCLUSIVE accounting (input_tokens excludes cache; freshInputTokens subtracts cache read/write from the upstream's inclusive prompt_tokens, clamped and alarmed on going negative). message_delta.usage is emitted exactly once per stream and is cumulative (final totals), never incremental -- asserted directly in test_streaming_event_sequence_integrity. message_start's usage fields are 0/omitted rather than Anthropic's real 1-3 placeholder output_tokens; harmless either way since both must never be treated as final, but noted as a minor wire-shape difference.
  2. Oversized body: the gateway's 4 MiB cap (maxBodyBytes in handler.go) truncates the raw body via io.LimitReader before json.Unmarshal ever runs, so a body over that ceiling genuinely is invalid JSON once truncated -- the "invalid JSON body" message is accurate for what was actually parsed, not misleading for a well-formed request that merely arrived too large. test_oversized_body_is_bad_request_not_a_hang_or_500 asserts the SDK gets a typed 400, not a hang or a 500.

Verification

Built and ran the full containerized sdk-tests-py suite (docker compose --profile test run --rm sdk-tests-py pytest -v, the exact shape ci.yml's live-integration job uses) against a throwaway Postgres seeded via scripts/ci-throwaway-db.sh + scripts/ci-seed-api-key.sh (same recipe CI uses) on a live edge-api/control-plane/litellm stack, in my own worktree with an isolated COMPOSE_PROJECT_NAME. Result: 32 passed, 4 xfailed, zero regressions to the 14 pre-existing OpenAI-suite tests in the same run.

Live-gateway verification against https://api-hive.scubed.co with a self-minted console key (the method requested) was attempted but blocked by tooling available to this session: the console's sign-up flow requires solving a live Cloudflare Turnstile challenge in a real browser, and no browser-automation tool was available to this agent; the root .env's SUPABASE_URL/SUPABASE_JWT_ISSUER also point at the Supabase Cloud project that was decommissioned in the self-hosted cutover, so GoTrue-admin session minting (live-auth.mjs) is unreachable from this sandbox too. The throwaway-stack verification above runs the identical edge-api binary/handler code the live gateway serves, seeded the same way CI already does, so the findings are substrate-accurate for the code under review even though the literal live hostname was not hit in this pass.

Buglog entry

Per .claude/rules/openwolf.md, not appended to .wolf/buglog.jsonl on this branch. Entry for the follow-up buglog-only PR:

{"timestamp":"2026-08-28T20:40:00Z","error_message":"streaming content_block_start omits text field, crashing the real Anthropic SDK's own stream accumulator on every text response","root_cause":"StreamContentBlock.Text carries json:\"text,omitempty\" in apps/edge-api/internal/anthropic/types.go; a text content_block_start always constructs Text:\"\", so omitempty drops the key entirely, leaving the SDK's typed content.text as None before the first += delta append","fix":"tracked as issue #1274, not yet fixed on this branch (test-only PR, marked xfail)","tags":["anthropic","streaming","sdk-conformance","edge-api"]}

Second and third entries, from the live run this pull request finally got

The first live run of this suite (33214262199) went red on two real defects, both fixed in commit d52c3c5. Run 33219513264 is green: 26 passed in the JavaScript suite, 32 passed and 4 xfailed in the Python suite, 5324 tokens metered against the 6000 ceiling.

{"timestamp":"2026-08-28T23:20:00Z","error_message":"Anthropic Messages request carrying top_k fails with 400 and the customer-facing message hive-free is not available.","root_cause":"edge-api forwards four non-OpenAI fields verbatim from the Anthropic surface (top_k, thinking, cache_control, session_id) because the OpenAI chat-completions shape has no equivalent. hive-free load balances across providers with different tolerances, so the request succeeded or hard-failed depending on which pool member answered, and the refusal reached the caller as model unavailability rather than as a refused field","fix":"dispatchWithRetry in apps/edge-api/internal/inference/retry.go now classifies a 400 that names one of those four fields, strips that single field, and retries. Bounded to one strip per field and to attempts that have a successor; a field the caller actually sent is never stripped. Known edge filed as issue #1323","tags":["anthropic","edge-api","free-pool","sdk-conformance"]}
{"timestamp":"2026-08-28T23:20:00Z","error_message":"GET /v1/models leaked an upstream provider name in the description of two aliases","root_cause":"model_aliases.summary is served verbatim as the description field, which makes it a customer-facing surface under the provider-blind rule, and 20260717_02_voice_groq_stt_tts.sql seeded the two voice aliases with the upstream named in prose","fix":"migration 20260828_01_voice_alias_summary_provider_blind.sql rewrites both summaries, scoped by alias_id and the exact old text so it cannot overwrite an operator retune. Caught by the committed assertion in packages/sdk-tests/js/tests/models/list-models.test.ts","tags":["provider-blind","catalog","migration","sdk-conformance"]}

Test plan

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@sakibsadmanshajib

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Adversarial review (pipeline mode)

Stream: CodeRabbit CLI -- SKIPPED. coderabbit review --committed --base main --agent returned rate_limit twice (fleet-wide credit exhaustion: "You've used all 3 included reviews currently available", onDemandReviewAvailable: false), matching the documented autonomous-execution fallback (orchestrator.md): skip and say so, never treat the absence as a clean pass.

Stream: adversarial-pr-review Skill -- SKIPPED, structural capability gap, not a workaround. This subagent's toolset for this task is Read/Write/Edit/Bash only; there is no Skill tool available to invoke adversarial-pr-review by name in pipeline mode as instructed. Escalating this to the orchestrator per the Gate Compliance rule rather than faking the invocation.

Stream: plain self-review (this pass, no specialized tool) -- ran manually against the diff (deploy/docker/docker-compose.yml, packages/sdk-tests/python/pyproject.toml, packages/sdk-tests/python/tests/test_anthropic_messages.py, 475 insertions).

Findings:

  1. No security-relevant surface touched (test-only additions, one compose env var, one dependency pin). No auth, money or input-parsing path is modified. Mandatory security/database review per D-038 is not triggered by this diff's shape.
  2. test_system_as_typed_content_block_array_with_cache_control's docstring cites PR fix: forward Anthropic prompt-caching cache_control through the gateway #1152 (typed content flattening) but the assertions only confirm the call succeeds and the usage cache fields are non-negative -- it does not independently prove the server preserved block structure rather than flattening it. That structural guarantee is already covered server-side by translate_request_test.go / translate_request_maximal_test.go; this test's job is SDK-level compatibility, and it is honest about that scope everywhere else in the file. Flagged as an accepted limitation, not a defect: strengthening it would need inspecting the upstream-bound request body, which this black-box SDK suite deliberately does not do.
  3. Dependency pin anthropic>=1.2.0,<2.0.0 is deliberately narrow (see the inline comment) because 1.2.0 is verified to have dropped temperature/top_p/top_k as typed messages.create() kwargs; an open range risks a future SDK release silently changing suite behavior again. Correct call for this specific finding.
  4. HIVE_TOOLS_MODEL addition to sdk-tests-py is purely additive and mirrors the existing sdk-tests-js block exactly (same variable, same default, same comment lineage back to issue A required check on main depends on a shared free-tier daily token budget, so main goes red for reasons no commit caused #1088). No risk to the existing suites, confirmed empirically: the full containerized run in the PR body shows the 14 pre-existing OpenAI-suite tests still passing unmodified in the same run.
  5. All four xfail markers use strict=False deliberately (a fix landing without updating this file surfaces as an unexpected pass, not a hard failure that blocks an unrelated merge) and each cites a real filed issue number, not a vague TODO.

No blocking findings from this pass. Recommend merging once CI is green; the four filed issues (#1259, #1260, #1261, #1274) are the actual follow-up work, not blockers on this test-only PR.

@sakibsadmanshajib sakibsadmanshajib left a comment

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Ran the review pipeline's plain adversarial pass on this one; CodeRabbit and Codex are both rate limited/over quota tonight and skipped (confirmed from their own comments on this PR). Left a few inline notes below, nothing here changes my read that this is a real, substantive conformance suite worth having.

Comment thread packages/sdk-tests/python/tests/test_anthropic_messages.py Outdated
Comment thread packages/sdk-tests/python/tests/test_anthropic_messages.py
Comment thread deploy/docker/docker-compose.yml
Runs the genuine anthropic Python SDK (never hand-rolled HTTP) against
edge-api's /v1/messages surface: non-streaming and streaming
messages.create, typed system content blocks with cache_control,
multi-block content arrays, every tool_choice form plus a full
tool-use round trip, sampling params via extra_body (the current SDK
no longer exposes temperature/top_p/top_k as typed kwargs), thinking,
vision, count_tokens, models.list, typed error classes for invalid
model/bad params/auth failure/oversized body, and a provider-identity
leak guard on both success and error paths.

Four real defects were found this way and are tracked as xfail
(strict=False, never silently skipped) referencing filed issues:
GET /v1/models rejects the SDK's default x-api-key header and returns
the wrong error envelope (#1259); empty completions serialize
content as JSON null instead of [] (#1260); count_tokens 401s every
API-key caller even though /v1/messages accepts the same key (#1261);
and content_block_start omits an empty text field, crashing the SDK's
own stream accumulator on the first delta of any text response
(#1274).

Verified live: built and ran the full containerized sdk-tests-py
suite (docker compose run sdk-tests-py) against a throwaway
Postgres seeded via scripts/ci-throwaway-db.sh + ci-seed-api-key.sh,
the same recipe ci.yml's live-integration job uses, on a live
edge-api/control-plane/litellm stack. 18 real passes, 4 tracked
xfails, zero regressions to the existing 14 OpenAI-suite tests in the
same run (32 passed, 4 xfailed total).

HIVE_TOOLS_MODEL is added to the sdk-tests-py compose service so the
new tool-use tests have a tools_supported alias to call, matching the
pattern sdk-tests-js already uses (issue #1088).
Two real findings from PR review, both fixed at the root rather than
argued around:

- xfail markers were strict=False while the module docstring and PR
  description both claimed strict=True ("fails loudly if the bug is
  ever fixed without updating the test"). The code did not deliver
  what the docstring promised: a fix to any of #1259/#1260/#1261/#1274
  landing without a matching test update would have quietly become an
  ordinary XPASS with no signal. Flipped all four decorators to
  strict=True so the code now matches the stated, and correct, intent.

- `import httpx2` was undeclared: it only resolved because anthropic
  1.2.0 happens to pull in httpx2 as a transitive dependency, with
  nothing in this package's own pyproject.toml holding that in place.
  This is the exact failure mode the comment directly above the new
  anthropic pin in pyproject.toml warns about (openai 3.x's httpx to
  httpx2 rename silently broke a direct httpx import here before).
  Switched to the project's own already-pinned httpx, matching
  test_error_shape.py's convention in the same package. Also dropped
  an unused `import json` caught in the same pass.

No assertion logic changed; both fixes are import/decorator-only.
@sakibsadmanshajib
sakibsadmanshajib force-pushed the test/anthropic-sdk-conformance branch from 844eccc to c4ac56c Compare August 28, 2026 21:50
…eaking a provider name from /v1/models

Two defects the live SDK conformance lane found the first time it actually ran
on this branch, both of which made the suite red for real reasons.

1. A pooled alias turned the same request into a coin flip. Hive forwards four
top-level fields verbatim from the Anthropic Messages surface because the
OpenAI chat-completions shape has no equivalent for them: top_k, thinking,
cache_control and session_id. That is right when the resolved upstream
understands the field and fatal when it does not. hive-free load balances
across providers with different tolerances, so an Anthropic call carrying
top_k drew a member that answers with a hard 400 naming that field, and the
customer saw "hive-free is not available." for a field the next member would
have served. dispatchWithRetry now recognises a 400 that blames one of those
four fields, strips just that field, and retries. Each field is stripped at
most once, the strip only happens on an attempt that has a successor, and a
400 blaming a field the caller actually sent (temperature, tools,
response_format) is never touched: dropping one of those would silently change
the request and answer 200 for something nobody asked for.

2. model_aliases.summary is served verbatim as the description of every
GET /v1/models entry, which makes it a customer-facing surface under the
provider-blind rule. The two voice aliases named their upstream in prose, so
every caller listing models read the provider name. The new migration rewrites
both summaries, scoped by the exact old text so it cannot overwrite a summary
an operator has since retuned. The stale part went with it: the text still
named a model that was shut down on 2025-12-31.

Buglog entry to be appended to main after this merges, per the buglog protocol
in .claude/rules/openwolf.md: carried in the pull request body.
sakibsadmanshajib added a commit that referenced this pull request Aug 29, 2026
…#1274, #1260, #1261, #1259) (#1296)

Closes #1274. Closes #1260. Closes #1261. Closes #1259.

## Are these one root cause or four?

Two families, not one, and not four independent fixes.

**Family A, Go zero-value JSON encoding dropping values the Anthropic
contract requires to be present (#1274 and #1260).** Both are the
gateway emitting a valid Go zero value where Anthropic requires an
explicit empty one, and in both cases the Go-side assertion a normal
test would write cannot see the defect at all: `len(content) == 0` is
true for a nil slice and an empty one alike, and a `Text` field set to
`""` looks correct right up until `encoding/json` runs. The mechanism
differs (`omitempty` on a string in one, a nil slice with no tag in the
other), so it is one class with two instances rather than a single line
to change.

**Family B, an auth model that only ever covered POST /v1/messages
(#1261 and #1259).** Every other route on the Anthropic surface was left
to inherit an auth path built for a different dialect. `count_tokens` is
the only route here that does not delegate to the chat chain, so it
never gained the API-key authority that chain provides, and `GET
/v1/models` was never given the leaf `APIKeyNormalizer` that
`/v1/messages` has carried since #954. The two share a cause but not a
line of code.

#1259 additionally carries a response-shape defect that belongs to
neither family: the route answered an Anthropic client with the OpenAI
list envelope and the OpenAI error envelope. Fixed here in the same
pass, since fixing only the auth half would have moved the failure one
step later.

## Ground truth

API shapes were verified against the live specification on 2026-08-28,
not from model memory, per the repository rule.

- `https://docs.claude.com/en/docs/build-with-claude/streaming` shows
`content_block_start` as `{"type":"text","text":""}` for a text block
and `{"type":"tool_use","id":...,"name":...,"input":{}}` for a tool_use
block, in every one of its five worked examples.
- `https://docs.claude.com/en/api/models-list` shows the list envelope
as `data` (entries of `type`/`id`/`display_name`/`created_at`) plus
`has_more`, `first_id` and `last_id`, the last two typed "string or
null".
- The SDK's own accumulator (`anthropic/lib/streaming/_messages.py`,
`accumulate_event`) was read directly to confirm the failure mechanism:
it does `content.text += event.delta.text` for a `text_delta`, which is
the `None += str` crash, and for an `input_json_delta` it **assigns**
`content.input` from its own `jiter` buffer rather than reading the
block-start value. That is why the missing `text` was fatal and the
missing `input` was not, and it is why this PR treats the two
differently in its claims.

`openwolf bug search anthropic` and `openwolf bug search omitempty` both
returned no prior entries.

## What changed

| Issue | Change |
| --- | --- |
| #1274 | `StreamContentBlock.Text` is now `*string` so the empty string
serializes, following the precedent `StreamEvent.Index` already set in
this same struct for the identical reason. `Input json.RawMessage` added
and set to `{}` on a tool_use block start. |
| #1260 | `FromOAIResponse` seeds `Content` with an empty non-nil slice
at construction and appends into it, which covers the early
`len(resp.Choices) == 0` return as well as the normal path. |
| #1261 | `anthropic.Deps.AuthorizeAPIKey` added; `count_tokens` accepts
a JWT session principal or an API-key principal. Nil leaves it
session-only and fail-closed. The refusal is the authorizer's own
verdict run through the shared `WriteAuthFailure` status mapping and
then reshaped into the Anthropic envelope, so no status logic is
duplicated. |
| #1259 | `GET /v1/models` is registered through a named `modelsHandler`
applying `anthropic.APIKeyNormalizer` at the leaf and
`anthropic.ModelsCompat` for shape. |

### Why the leaf normalizer on /v1/models is not redundant

`authSelectorMiddleware` already wraps every `/v1/*` route in
`APIKeyNormalizer` (#954), but only when JWT auth is wired: `handler =
authSelectorMiddleware(jwtMW, handler)` sits behind `if jwtMW != nil`.
On a deployment where Supabase JWT config is absent, edge-api logs "JWT
auth wiring skipped" and mounts no selector at all, so nothing
normalizes `x-api-key` and `handleModels` reads an empty `Authorization`
header. `/v1/messages` kept working there purely because it carries its
own leaf wrapper. That asymmetry is exactly the reported symptom in
#1259 (same key, same connection, `/v1/messages` fine and `/v1/models`
401) and it is why the fix is a leaf wrapper rather than a change to the
selector.

### Provider-blind invariant

The `ModelsCompat` translation reads `id`, `created` and `name` and
writes `type`, `id`, `display_name` and `created_at`. `owned_by` and
every other OpenAI field are dropped rather than passed through, so this
strictly reduces what reaches an Anthropic client.
`TestModelsCompat_AnthropicClientGetsTheAnthropicListShape` asserts
`owned_by` is absent from the body. Nothing on any path touched here
emits a provider name, an upstream id or a `system_fingerprint`; the
existing `TestHandleModelsDoesNotLeakProviderNames` and
`TestSSETranslator_MessageID_NeverLeaksUpstreamID` guards are unchanged
and still pass.

## Mutation check

Every added test was proved load-bearing by reverting the fix it guards
and observing it fail for the right reason, then restoring and observing
it pass. Full transcript, six mutations, all red, then green on restore:

| # | Mutation applied | Test | Result |
| --- | --- | --- | --- |
| 1 | `StreamContentBlock.Text` back to a plain `string`, call site back
to `Text: ""` |
`TestSSETranslator_TextBlockStartCarriesExplicitEmptyText` | FAIL: `text
content_block_start omits the "text" key entirely ... map[type:text]` |
| 2 | Delete `Input: json.RawMessage("{}")` from the tool_use block
start | `TestSSETranslator_ToolUseBlockStartCarriesExplicitEmptyInput` |
FAIL: `tool_use content_block_start omits the "input" key: map[id:call_1
name:get_weather type:tool_use]` |
| 3 | Delete the `Content: []ResponseBlock{}` seed |
`TestFromOAIResponse_EmptyCompletionSerializesContentAsArray` | FAIL on
both subtests: `got {... "content":null ...}` |
| 4 | `if h.deps.AuthorizeAPIKey == nil` forced to `if true`, i.e.
count_tokens back to session-only |
`TestHandler_CountTokens_AcceptsAPIKeyPrincipal`,
`..._RejectedAPIKeyKeepsTheAuthorizersOwnRefusal` | FAIL: `want 200 got
401
body={"type":"error","error":{"type":"authentication_error","message":"missing
user"}}`, and `error.message: want the authorizer's own refusal got
missing user` |
| 5 | `if !IsAnthropicClient(r)` forced to `if true`, i.e. never
re-shape | `TestModelsCompat_*` (3 tests) | FAIL: OpenAI body passed
through, `first_id`/`last_id` nil, `envelope: want top-level type=error
got <nil>` |
| 6 | `modelsHandler` unwrapped to `return handleModels(client,
authorizer)` | `TestModelsHandlerServesAnAnthropicSDKClient` | FAIL:
`x-api-key caller: want 200 got 401: {"error":{"message":"You didn't
provide an API key...` |

After restoring all six, `go test ./apps/edge-api/internal/anthropic/...
./apps/edge-api/cmd/server/...` is `ok` for both packages, and the wider
`go test ./apps/edge-api/... -count=1 -short` passes with no failures.
`gofmt -l` reports none of the touched files.

Four of the added tests are deliberately non-regression guards rather
than defect guards, and do not go red under any mutation above. The
count said two on first posting and was corrected in review; the table
is the record anyone reads later, so it should say what is actually
true.

- `TestModelsCompat_OpenAIClientIsUntouched` and
`TestModelsHandlerKeepsTheOpenAIShapeForOpenAIClients` exist to fail if
a later change starts re-shaping unconditionally and empties Open
WebUI's model picker. Both compare byte-identical bodies, so the inverse
mutation of always reshaping does turn them red.
- `TestHandler_CountTokens_WithoutAnAPIKeyAuthorityFailsClosed` stays
green under mutation 4, since a handler wired without an API-key
authority writes 401 either way. It pins the fail-closed default and
goes red if someone makes a nil authority permissive.
-
`TestHandler_CountTokens_SessionPrincipalDoesNotConsultTheAPIKeyAuthority`
also stays green under mutation 4, since the session branch returns
before the nil check is reached. It goes red if the two principal checks
are ever reordered.

`TestIsAnthropicClient` is a unit test of a new pure function that none
of the six mutations touch, so it is neither a defect guard nor a
non-regression guard for anything in the table.

## Review round two

Three findings from review, all fixed in `25b2820`, all in
`apps/edge-api/internal/anthropic`.

**Refusal retry headers were being dropped.**
`apierrors.WriteAuthFailure` is the shared source of truth precisely so
a retryable 429 is never collapsed into a non-retryable refusal, and it
delivers the retryable part through headers rather than the body:
`retry-after` plus the four `x-ratelimit-*` values on a real 429, and
`retry-after` on both the degraded-limiter branch and the
`upstream_unavailable` branch. Recording the refusal in a
`headerlessRecorder` and reshaping only its body threw all of that away.
`count_tokens` lost it latently, and `GET /v1/models` lost it live
through `authorizeAliasRequest`, which also left the two client shapes
disagreeing about retry metadata for the same refusal on the same route.
`headerlessRecorder.reshapeInto` now carries the headers over and
reshapes in one call, so a call site cannot take one half of a refusal
without the other. `Content-Type` and `Content-Length` are deliberately
not carried: the reshaped body is a different envelope of a different
length, and a stale `Content-Length` would truncate it on the wire.
Everything that is forwarded is retry metadata and carries no provider
identity, so the provider-blind invariant is unchanged.

**`GET /v1/models` served two representations for one URL without
declaring it.** Nothing on the route sets `Cache-Control` and the route
needs a credential, so no correct cache stores it today and no live
exploit exists. The declaration is what keeps a later edge cache in
front of Caddy, or an intermediary keying on URL alone, from handing an
Anthropic-shaped body to Open WebUI and emptying its model picker, which
is the regression `TestModelsCompat_OpenAIClientIsUntouched` exists to
prevent. `Vary: anthropic-version, x-api-key` is now set on both
branches, before either writes.

**`Finish` could emit `message_delta` before any `message_start`.**
`Translate` calls `Finish` unconditionally and `Finish` did not check
`t.started`, so an upstream stream that yielded no parseable chunk at
all produced a terminal pair with nothing before it, and the SDK
accumulator raises an unexpected-event-order error when a
`message_delta` arrives while its snapshot is still nil. Review
suggested a follow-up issue for this rather than widening the PR; the
fix turned out to be three lines in a file this PR already changes,
which is smaller than the issue describing it, so it is taken here.
`FeedLine` and `Finish` now share one `ensureStarted`, which emits
`message_start` exactly once per stream whichever of them reaches it
first.

Four more mutations, each applied alone, each restored after:

| # | Mutation applied | Test | Result |
| --- | --- | --- | --- |
| 7 | `reshapeInto`'s header loop forced to skip every key |
`TestHandler_CountTokens_RefusalCarriesTheAuthorizersRetryHeaders`,
`TestHandler_CountTokens_UpstreamUnavailableCarriesRetryAfter`,
`TestModelsCompat_RefusalCarriesTheRetryHeaders` | FAIL: `retry-after:
want 30 got ""`, `retry-after: want 5 got ""`, and the three
`x-ratelimit-*` assertions on both routes |
| 8 | `Content-Length` removed from the skip list, so the delegated
body's length is forwarded |
`TestModelsCompat_RefusalCarriesTheRetryHeaders` | FAIL:
`content-length: the delegated body length must not describe the
reshaped one, got "4096"` |
| 9 | The `Vary` line deleted | `TestModelsCompat_DeclaresVary` | FAIL
on both subtests: `vary: want both request headers that select the
representation, got ""` |
| 10 | `ensureStarted` removed from `Finish` |
`TestSSETranslator_EmptyStreamStillOpensTheMessage` | FAIL: `first
event: want message_start got message_delta` |

`TestSSETranslator_FinishAfterAStartedStreamDoesNotRepeatMessageStart`
is a fifth non-regression guard: it stays green under all ten mutations
and exists so that opening the message from `Finish` can never add a
second `message_start` to a stream that already carried one.

### Adversarial review of the round-two fixes

The round-two commit went back through the review pipeline before this
was called done. Two findings, both fixed in `f0e4c56`.

**The `Vary` declaration used `Set` where it should use `Add`.** Nothing
in edge-api declares a `Vary` on this route today (`grep` finds exactly
one writer, the new line itself), so overwriting was harmless in the
current tree and wrong the moment an outer middleware declares one of
its own, a CORS layer setting `Vary: Origin` being the obvious case. The
wrapper is now additive.

**The 2xx branch of `ModelsCompat` dropped every header the delegated
handler set.** That path re-encodes the body rather than reshaping it,
which is exactly why the carry-over the refusal path had just gained was
easy to leave out of it. A header set alongside a success is as much
part of that response as the body is, and this route is where a 2xx
rate-limit budget would surface. The header copy is now its own method
on the recorder, `copyHeadersTo`, and both branches call it.

| # | Mutation applied | Test | Result |
| --- | --- | --- | --- |
| 11 | `Vary` back to `Set` |
`TestModelsCompat_VaryDoesNotClobberAnExistingDeclaration` | FAIL:
`vary: want "Origin" preserved, got "anthropic-version, x-api-key"` |
| 12 | `rec.copyHeadersTo(w)` deleted from the success branch |
`TestModelsCompat_SuccessCarriesTheDelegatedHeaders` | FAIL:
`x-ratelimit-remaining-requests: want 42 got ""` |

### On `display_name` and the provider-blind edge

Review confirmed independently that the `ModelsCompat` translation is
provider-blind (it reads `id`, `created` and `name` only, so `owned_by`
and `description` cannot ride along) and flagged the remaining edge:
`display_name` is `model_aliases.display_name`, free text, and one
seeded row already reads `Openrouter Auto (Task Aware)`. That row is
`visibility='internal'` today, so the `visibility IN ('public',
'preview')` predicate keeps it off both list paths, but the migration
that added it describes a later flip to public as a one-line follow-up.

Nothing here closes #1284, and this PR never claimed to: the OpenAI
branch is unchanged and still ships the `hive-stt` and `hive-tts`
descriptions that #1284 reports. The `display_name` edge is recorded as
a comment on #1284 rather than a new issue, since it is the same route
and the same family, and the guard it asks for (assert no listed alias's
`display_name` or `summary` matches a known provider name) belongs where
the catalog is listed, not in this translation.

## Effect on #1278

This should flip all four `xfail` markers in
`packages/sdk-tests/python/tests/test_anthropic_messages.py` to real
assertions. Not touched here, since that branch is not mine to edit.

- `test_streaming_event_sequence_integrity` (#1274)
- `test_tool_choice_none_forbids_tool_use` (#1260)
- `test_count_tokens` (#1261)
- `test_models_list` (#1259)

One caveat on the last one. `client.models.list()` will now authenticate
and return the Anthropic list envelope, but the SDK's typed page model
may expect fields this gateway has no source for. If that assertion
still fails after this merges, it is a narrower follow-up about specific
fields, not the auth and envelope defects #1259 reported.

## Scope deliberately not taken

#1260 also observes that a zero-content streaming turn emits
`message_start`, `message_delta`, `message_stop` with no
`content_block_start`/`stop` pair. That is left alone: the streaming
path already emits `"content":[]` in `message_start`, so an SDK folding
the stream back into a message gets an empty array rather than null, and
Anthropic's own specification does not require a content block on a turn
that produced no content. The reported crash is in the non-streaming
builder, which is what this changes.

The neighbouring case where `message_start` never fires at all is a
different defect, was not what #1260 reported, and is now fixed here
rather than deferred. See Review round two above.

## Test plan

- [x] `go test ./apps/edge-api/... -count=1 -short` through the
toolchain container, green, re-run after the review-round-two fixes
- [x] `gofmt -l apps/edge-api` clean for every touched file
- [x] Twelve-way mutation check, all three tables above
- [ ] CI required checks green
- [ ] `packages/sdk-tests` Anthropic conformance suite re-run against a
live stack once #1278 merges, to confirm the four xfails flip

## Buglog entry

```json
{"id":"bug-2026-08-28-anthropic-sdk-wire-conformance","date":"2026-08-28","title":"Anthropic surface broke the real SDK four ways: content_block_start dropped text, empty completions serialized content null, count_tokens 401d API keys, /v1/models rejected x-api-key and answered OpenAI-shaped","error_message":"TypeError: unsupported operand type(s) for +=: 'NoneType' and 'str' in anthropic/lib/streaming/_messages.py accumulate_event; TypeError: 'NoneType' object is not iterable on msg.content; anthropic.AuthenticationError 401 {\"type\":\"error\",\"error\":{\"type\":\"authentication_error\",\"message\":\"missing user\"}} on count_tokens; anthropic.AuthenticationError 401 invalid_api_key on models.list()","root_cause":"Two families. (1) Go zero-value JSON encoding dropped values the Anthropic wire contract requires to be explicitly present: omitempty on StreamContentBlock.Text dropped the required \"text\":\"\" from every text content_block_start, and a nil []ResponseBlock in FromOAIResponse marshaled to null instead of []. Neither is visible to a Go-side assertion, since len() cannot distinguish nil from empty and a \"\" field looks correct until encoding/json runs. (2) The Anthropic surface's auth model only ever covered POST /v1/messages: count_tokens is the only route that does not delegate to the chat chain so it never gained an API-key authority and recognised session principals only, and GET /v1/models never got the leaf APIKeyNormalizer /v1/messages carries, which matters because the global one in authSelectorMiddleware only exists when jwtMW is non-nil.","fix":"StreamContentBlock.Text became *string and gained Input json.RawMessage set to {} on tool_use starts, matching the live streaming spec. FromOAIResponse seeds Content with an empty non-nil slice at construction so both exits are covered. anthropic.Deps.AuthorizeAPIKey added and count_tokens accepts either principal, fail-closed when nil, refusals reshaped from the shared WriteAuthFailure mapping. GET /v1/models registered through modelsHandler applying APIKeyNormalizer at the leaf plus a ModelsCompat wrapper that answers Anthropic-shaped callers with the Anthropic list and error envelopes while leaving OpenAI callers byte-identical.","tags":["anthropic","sdk-conformance","edge-api","json-encoding","omitempty","auth","streaming","provider-blind"],"issues":[1274,1260,1261,1259],"pr":"fix/anthropic-stream-content-block-start"}
```
@sakibsadmanshajib
sakibsadmanshajib merged commit 812a90b into main Aug 29, 2026
31 checks passed
@sakibsadmanshajib
sakibsadmanshajib deleted the test/anthropic-sdk-conformance branch August 29, 2026 00:57
sakibsadmanshajib added a commit that referenced this pull request Aug 29, 2026
## Summary

This is the batched buglog follow-up for the 21 pull requests merged
during the 2026-08-28 session. Its diff is `.wolf/buglog.jsonl` and
nothing else.

Per `.claude/rules/openwolf.md`, every fixed bug, error, failed test or
failed build must be logged, but the line may never be appended on a fix
branch: `merge=union` in `.gitattributes` resolves concurrent appends
locally and is ignored by GitHub's server side merge, so two branches
that both appended land in hard conflict there. An unmergeable pull
request gets no `refs/pull/N/merge`, no `pull_request` run and therefore
zero checks, and the required status gate then blocks the merge for a
reason the page never states (issue #873). Each fix accordingly carried
its entry in its own pull request body, and this pull request copies
them onto `main` in one batch, which the protocol explicitly prefers
over one pull request per entry.

## Source pull requests

1240, 1251, 1253, 1257, 1268, 1276, 1277, 1278, 1281, 1287, 1292, 1293,
1294, 1296, 1300, 1301, 1303, 1305, 1313, 1335, 1337. All merged.

Every entry came from a "Buglog entry" heading in one of those bodies.
Nothing was invented for a pull request that carried none.

## What landed

36 entries appended, one JSON object per line, append only. The 196
pre-existing lines are byte identical to `origin/main`.

| Source | Entries |
|---|---|
| #1240 | 1 |
| #1251 | 1 |
| #1253 | 1 |
| #1257 | 4 |
| #1268 | 5 |
| #1276 | 2 |
| #1277 | 1 (of 2 in the body) |
| #1278 | 0 (merged into #1296) |
| #1281 | 2 |
| #1287 | 2 |
| #1292 | 3 |
| #1293 | 1 |
| #1294 | 3 |
| #1296 | 1 |
| #1300 | 1 |
| #1301 | 1 |
| #1303 | 1 |
| #1305 | 3 |
| #1313 | 1 |
| #1335 | 1 |
| #1337 | 1 |

Note on #1268: its first "Buglog entry" heading says "None yet" in prose
and carries no JSON. Its two later headings, from the CI live lane and
from the intermittent tool call failure, carry the five entries taken
here.

## Deduplication

- **#1278 dropped, folded into #1296.** Both describe the same defect:
`omitempty` on `StreamContentBlock.Text` dropped the required
`"text":""` from every text `content_block_start`, crashing the real
Anthropic SDK's stream accumulator (issue #1274). #1278 is the
conformance suite that found it and shipped it marked xfail; #1296 is
the fix, and its entry carries the fuller root cause and the actual
remedy. One bug, one entry. #1296's entry gains a `discovered_by` field
naming #1278 so the discovery is not lost.
- **#1277's first entry dropped.** The same body carries a later "Buglog
entry (revised)" heading written after the review round found the page's
claims did not match what the code enforces. The revised entry is the
one taken.
- Checked and kept as distinct: #1313 and #1337 are two different hooks
(`decision-citation-check.js` and `secrets-scanner.js`) blind to the
same MultiEdit payload shape, fixed in two different pull requests, so
two entries. #1240 and #1335 are two different `account_not_provisioned`
defects, one an observability gap at the edge boundary and one a console
mint that should have refused, so two entries. #1305's three entries are
three separate rounds of defects in the same money path change, each
with its own root cause.

## Corrections against what actually merged

Each entry was checked against the merged tree at `origin/main`, not
against its own claim.

- **#1240.** The entry said the log line went in at
`AuthSnapshot.TenantUUID`. On `main` the check is the exported
`authz.ParseTenantID(TenantLookup)` that `TenantUUID` delegates to,
which the images and audio routing adapters (two further silent call
sites found in the same review) also call, and `key_id` is deliberately
not logged because CodeQL's clear text logging check flags any field
named `*Key*` (alert #31). The `fix` field now says so.
- **#1276, first entry.** The entry named
`app/console/analytics/page.tsx` as the home of the five fetch helpers
and their `Promise.all`. On `main` they live in
`apps/web-console/lib/analytics/overview-fetch.ts`, extracted during
review. Path corrected.
- **#1277.** Its `error_message` was the placeholder `n/a`.
Reconstructed from the pull request's own correction narrative: the page
as first written published a blanket no content stored claim false for
`/v1/batches`, `/v1/files` and `/v1/rag`, a product wide provider
blindness claim disproved by catalogue summaries that name vendors
(#1284), a metering claim anchored to the console side `UsageEventRow`
projection rather than the `usage_events` table, and a 1:1 alias to
route claim that is a property of seed data rather than of
`SelectRoute`.

**#1303 needed no correction.** Its original root cause asserted a live
mid stream provider leak on the session chat relay that measurement
disproved, and the author had already corrected the body before merge.
The corrected version is what was taken, including the sentence
recording that the session chat relay did not leak an error frame but
silently truncated instead.

Every other entry's central claim was verified present in the merged
tree, among them `metering.SupportsIncludeUsage`,
`sanitize.VariablePriceFrame` in the batch dispatcher, the revoke and
regrant in `20260828_01_service_role_public_schema_grant.sql` with the
`anon` assertions in `ci-throwaway-db.sh`, `normalizeReasoningUsage` now
called from `normalizeChatCompletion`,
`signup.SyncTenantMembershipRole`,
`TestKeyViewHidesALimitThatIsNotEnforced`,
`TestListEventsLatencyCrossesTheWire`, `mask-api-keys.mjs` and
`md-table.mjs`, `StreamContentBlock.Text` as `*string`,
`redactSnapshot`, `httpx.ReadBody`, `sanitize.ReplaceErrorFrame` with
the default deny tail in `provider_blind.go`, `pinCompletionCeiling` and
`captureInputTokens` with `applyReasoningHeadroom` gone,
`requireBillingTenant`, and `hooks.selfcheck.js` wired into the Repo
policy lints check.

## Verification

- `node .wolf/hooks/bugstore.selfcheck.js` reports `bugstore selfcheck
OK`.
- All 232 lines parse as a single JSON object each.
- Every appended entry carries `error_message`, `root_cause`, `fix` and
`tags`.
- Scanned for credentials: no API key, bearer token, JWT, password, AWS
key or Postgres DSN with a password appears in any entry. The `hk_`
occurrences are prefix descriptions in prose, not keys.
- `git diff origin/main...HEAD --name-only` prints `.wolf/buglog.jsonl`
and nothing else. No `.wolf/` telemetry was staged.

## Review

No adversarial review streams were run, deliberately. This change is
records only: it adds no code, no test, no configuration and no
behavior, and `.wolf/buglog.jsonl` is on the inert path allowlist in
`.github/workflows/ci.yml`, so the six required checks report green
without running their heavy steps. If a check does fail here, that is a
real signal about the file rather than about the pipeline.

https://claude.ai/code/session_01WyEwUxZCArdn1ZUDkTvuQ1

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
sakibsadmanshajib added a commit that referenced this pull request Aug 29, 2026
## Summary

This is the batched buglog follow-up for the pull requests merged to
`main` on 2026-08-29. Its diff is `.wolf/buglog.jsonl` and nothing else.

Per `.claude/rules/openwolf.md`, every fixed bug, error, failed test or
failed build must be logged, but the line may never be appended on a fix
branch. `merge=union` in `.gitattributes` resolves concurrent appends
locally and is ignored by GitHub's server side merge, so two branches
that both appended land in hard conflict there. An unmergeable pull
request gets no `refs/pull/N/merge`, no `pull_request` run and therefore
zero checks, and the required status gate then blocks the merge for a
reason the page never states (issue #873). Each fix accordingly carried
its entry in its own pull request body, and this pull request copies
them onto `main` in one batch, which the protocol explicitly prefers
over one pull request per entry.

## Scope examined

Fifty nine pull requests merged to `main` on 2026-08-29. Forty eight of
them carried at least one entry, for eighty two entries in total. Thirty
two of those were already on `main` and are skipped, leaving fifty
appended here from thirty four pull requests.

The largest block of skips comes from #1342, the equivalent batch for
the 2026-08-28 merges, which merged earlier the same day and already
landed thirty six entries covering #1257, #1268, #1276, #1277, #1287,
#1292, #1293, #1294, #1296, #1301, #1303, #1305, #1313, #1335 and #1337.

## What landed

Fifty entries appended, one JSON object per line, append only. The 232
pre-existing lines are byte identical to `origin/main` (verified by
hashing the first 232 lines of the result against the base file). Every
line in the resulting file parses as JSON and carries `error_message`,
`root_cause`, `fix` and `tags`.

| Source | Entries |
|---|---|
| #1083 | 2 |
| #1277 | 1 |
| #1278 | 1 |
| #1298 | 1 |
| #1334 | 1 |
| #1336 | 3 |
| #1343 | 1 |
| #1346 | 1 |
| #1351 | 1 |
| #1365 | 2 |
| #1368 | 1 |
| #1369 | 1 |
| #1371 | 3 |
| #1375 | 3 |
| #1376 | 1 |
| #1378 | 1 |
| #1379 | 2 |
| #1388 | 5 |
| #1389 | 3 |
| #1390 | 2 |
| #1393 | 1 |
| #1394 | 1 |
| #1410 | 1 |
| #1417 | 1 |
| #1421 | 1 |
| #1423 | 1 |
| #1424 | 1 |
| #1426 | 1 |
| #1429 | 1 |
| #1431 | 1 |
| #1433 | 1 |
| #1434 | 1 |
| #1436 | 1 |
| #1439 | 1 |

Entries are copied verbatim from their source pull request bodies.
Nothing was rewritten, no field was invented, and no field was added. No
JSON needed repair: all eighty two extracted entries parsed on the first
attempt and all four required fields were present on every one.

## Merged pull requests that carried no entry

Eleven of the fifty nine. Recorded here because the gap is itself the
useful signal.

| Pull request | Title | Assessment |
|---|---|---|
| #1013 | chore(deps): bump the go-minor-patch group across 1 directory
with 4 updates | Dependabot bump, no defect fixed, no entry expected |
| #1015 | chore(deps): bump the go-minor-patch group across 1 directory
with 6 updates | Dependabot bump, no entry expected |
| #1016 | chore(deps): bump golang from 1.26-alpine to 1.27-alpine in
/deploy/docker | Dependabot bump, no entry expected |
| #1218 | chore(deps): bump postcss from 8.5.19 to 8.5.26 in
/apps/desktop | Dependabot bump, no entry expected |
| #1219 | chore(deps): bump golang.org/x/crypto from 0.41.0 to 0.52.0 in
/apps/control-plane | Dependabot bump, no entry expected |
| #1342 | chore: batch buglog entries for the 2026-08-28 merges | The
previous batch pull request itself, correctly carries no entry of its
own |
| #1364 | chore: remove four dead skills and record the patterns that
cost time | Protocol gap. The body records patterns that cost time,
which is the shape of a buglog entry, but none was written as one |
| #1383 | test: retire stale expected-failure markers, restore the ones
that are true (#1381, #1382, #1324) | Protocol gap. Stale `it.fails`
markers reading as red is a real defect that was fixed here and should
have carried an entry |
| #1384 | docs: correct D-047, hive-auto reverted to variable pricing
(D-059) | Decision ledger correction, arguably a documentation defect,
no entry written |
| #1387 | chore(deps): bump next from 15.5.23 to 16.3.3 in
/apps/agent-console | Dependabot bump, no entry expected |
| #1398 | docs: rescue the 2026-08-25 parity captures and add the
2026-08-29 QA matrix evidence | Documentation and evidence rescue, no
entry written |

Six of the eleven are Dependabot bumps and one is the previous batch, so
the genuine protocol gaps are #1364, #1383, #1384 and #1398. Of those,
#1383 is the one worth a follow-up: it fixed a real defect class (a
stale expected-failure marker reads as a red "Expect test to fail" and
gets dismissed as pre-existing) and left no record.

## Entries skipped as already present

Thirty two. Thirty of them matched an entry already on `main` on
`error_message`, `id` or `fix`. Two more from #1278 are semantic
duplicates that an exact match would have missed, and were skipped after
reading the landed entries they duplicate:

- #1278's `streaming content_block_start omits text field` entry is
covered by the consolidated
`bug-2026-08-28-anthropic-sdk-wire-conformance` entry landed from #1296,
whose root cause names the same `omitempty` on
`StreamContentBlock.Text`.
- #1278's `GET /v1/models leaked an upstream provider name` entry is
covered by `BUG-1284`, landed from #1300, which names the same
`public.model_aliases.summary` publication path.

#1278's third entry, on `top_k` forwarding producing a 400, is not
covered anywhere on `main` and is appended here. #1342 recorded #1278 as
fully "merged into #1296", which was accurate for two of its three
entries.

## Note on entry quality

One appended entry is thin: #1277's parity re-score record carries
`error_message` of `n/a` and a root cause of "console had no
privacy/data-policy surface at all". It is a parity gap record rather
than a defect record. It is included exactly as written rather than
embellished, per the protocol's preference for the author's own words.

## Test plan

- [x] Branch cut fresh from `origin/main`, diff is `.wolf/buglog.jsonl`
and nothing else
- [x] First 232 lines byte identical to the base file (md5 match)
- [x] All 282 resulting lines parse as JSON and carry `error_message`,
`root_cause`, `fix` and `tags`
- [x] No `.wolf/` telemetry (`anatomy.md`, `memory.md`,
`token-ledger.json`, `hooks/_session.json`, `buglog.json`) in the commit
- [ ] The six required checks report green via the inert path allowlist
in `.github/workflows/ci.yml`

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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