docs(plans): specify middleware on Vertex, AI Studio and Bedrock - #1656
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📝 WalkthroughWalkthroughThe pull request adds a specification for applying model middleware to native Google Vertex, Google AI Studio, and Amazon Bedrock ChangesNative Provider Middleware
Estimated code review effort: 1 (Trivial) | ~5 minutes Merge Risk: 🟡 Moderate · up to This plan defines middleware behavior and validation for native provider paths, but its current scope, call graph, lifecycle descriptions, and local test setup remain incomplete or inaccurate. Resolve these documentation issues before merge so the implementation work and its tests cover the intended provider behavior. Suggested reviewers: 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Review of the spec doc — every code-level claim checked against the graph (built at this PR's merge base b2a760e) and GitHub code search at the base ref. Findings inline.
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NEEDS_WORK — the spec's structure, ordering, gates and red-first test plan are right, but four of its "state of the code" claims are false or incomplete, and they are the claims an implementing PR will be written against. This is a specification document, so the review spent itself on factual accuracy: every file/line reference, call-site, gate name and quote was verified against the code graph built at this PR's merge base (
Checked and clean (silence here is verified absence, not omission):
Impact analysis note: docs-only diff, so blast radius was computed on the claims rather than the diff — each finding above names the out-of-diff code the spec misdescribes. Graph was built and current (17,154 nodes / 145,720 edges at Findings 1–4 are all in the same class — the spec was drafted against an older or partial read of |
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NEEDS_WORK — the spec's structure, ordering, gates and red-first test plan are sound, but four of its "state of the code" claims are false or incomplete and are exactly what an implementing PR will be written against. The full finding table is in the summary comment; each finding carries a suggested rewrite inline.
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Actionable comments posted: 5
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Inline comments:
In `@docs/plans/2026-09-07-middleware-on-native-providers.md`:
- Around line 107-111: Clarify the plan’s treatment of
executeAudioStreamViaGeminiLive: either explicitly exclude audio under “Out of
scope” and state that ordering compares only the text SSE branch, or define the
audio middleware application and cancellation behavior before proceeding.
- Line 19: Update the call-site inventory to count five live sites, including
the baseProvider entry point. Clarify that three providers bypass middleware by
overriding the public generate() and stream() paths, and update the entry-point
table to include both Vertex Anthropic and Gemini-3 branches for generate and
stream.
- Around line 46-50: Revise the lifecycle discussion to scope the claim to the
generate path: distinguish Vertex’s provider-local fireGenerateOnFinish handling
from AI Studio and Bedrock lacking generate handlers, and document the
BaseProvider behavior that stream callers receive without asserting all
lifecycle callbacks are dropped.
- Around line 139-146: Update the middleware plan to include executable
provider-specific local stand-in setup for Vertex, AI Studio, and Bedrock,
covering Google credentials or ADC, endpoint/base-URL overrides or injected
fetch, and Bedrock endpoint and credentials configuration. Reference existing
characterization helpers where applicable, and ensure the documented setup
supports wire assertions and the zero-request guardrail test.
- Line 76: Update the sentence beginning “#1636 solved” so the reference is
valid Markdown prose, using “PR `#1636` solved...” rather than leaving the
hash-prefixed number at the start.
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Review of the revised spec. All five prior findings are now incorporated and verified; two new minor gaps remain.
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NEEDS_WORK — the revision is a solid, accurate correction: all five findings from the prior review are now incorporated and my independent re-verification confirms every new factual claim. Two minor gaps in the rewrite remain, both internal-consistency issues an implementing PR could trip on.
Prior findings 1–5 accepted as addressed (verified, not assumed):
Checked and clean:
Impact note: docs-only change, so blast radius was assessed on the spec's claims (each finding above names the out-of-diff code it affects) rather than the diff. The two open findings are wording/table-consistency fixes with concrete suggestions inline. |
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NEEDS_WORK — all five original findings are now incorporated and verified; two MINOR spec-internal inconsistencies remain.
The fifth call site, the Vertex-only onFinish scoping, the Vertex Anthropic/Gemini-3 branches, the AI Studio audio branch, and the stand-in transport recipe are all correctly in the revised doc. Two leftovers keep this from approval:
- Line 19 still says "Four call sites reach it" while the table lists five.
- Line 60: the Vertex row of the entry-points table omits the Anthropic-on-Vertex branches that the Order section correctly counts.
Full details and suggested rewrites are inline.
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NEEDS_WORK — this is a docs-only specification, so the review spent itself on factual accuracy of the code claims; the revision incorporated all five prior findings, and two MINOR spec-internal inconsistencies remain.
Findings now accepted as incorporated (verified against the current HEAD doc, not re-posted):
Checked and clean (verified absence, not omission):
Impact analysis note: docs-only diff, so blast radius was computed on the code claims, not the diff — each accepted finding names the out-of-diff code the spec now describes correctly. Author: applying the two inline rewrites (lines 19 and 60) will clear the last two findings. |
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Yama review-state note — deduplication pass. Validating this PR's review state surfaced that the current review had already been posted (the prior pass), and this pass re-posted the same two findings, creating duplicates. Cleaned up as far as the available tooling allows:
Known limitation: this repository's toolset provides no way to delete individual review/issue comments, so the two duplicate inline threads were resolved (collapsed) rather than removed, and the redundant |
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NEEDS_WORK — the revision cleared all five MAJOR findings and the line-19 count, but two findings remain: (A) the transport paragraph now recommends installMockFetch as "the most likely answer" when the repo's own characterization suites prove the seams are credentials.*.baseURL / AWS_ENDPOINT_URL_BEDROCK_RUNTIME, and installMockFetch cannot reach Bedrock's AWS-SDK transport; (B) the "Entry points to change" table still omits Vertex's Anthropic branch despite the reply claiming it was fixed. Inline rewrites are attached to both.
| Start from the precedent already in the repo rather than inventing one: the | ||
| per-provider characterization suites (`test:vertex-loop-characterization`, | ||
| `test:aistudio-loop-characterization`, `test:bedrock-loop-characterization`) | ||
| already drive these three deterministically, and `providers-mocked` reaches | ||
| them through `installMockFetch`, which intercepts at the fetch layer and so | ||
| does not need a caller-supplied `baseURL` at all. That interception is the | ||
| most likely answer for AI Studio and Vertex; Bedrock's AWS SDK client may | ||
| need its own endpoint option instead. |
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MAJOR — the transport answer added to close the earlier stand-in finding is factually wrong, and contradicts the very characterization suites it cites.
This paragraph was added in the revision that "addressed" the prior stand-in finding, but the recommendation it now makes does not match how this repo actually stands up these three providers — and a follow-up from CodeRabbit already flagged exactly this (discussion_r3950505659).
Two concrete problems:
installMockFetchonly patchesglobalThis.fetch(test/utils/mockFetch.ts:const original = globalThis.fetch; ... globalThis.fetch = (...) => {...}). It therefore cannot reach Bedrock's transport at all: the characterization suite shows@aws-sdk/client-bedrock-runtimeuses its ownNodeHttp2Handler/"EventStream" framing, not global fetch. The doc's own hedge (line 161-162, "Bedrock's AWS SDK client may need its own endpoint option") concedes this for Bedrock.- The repo's own characterization suites — which this paragraph tells the implementing PR to start from — do NOT use
installMockFetch. They point the real SDK at a local server:- AI Studio —
credentials.googleAiStudio.baseURL: "http://127.0.0.1:<port>", threaded into the SDK'shttpOptions.baseUrl(continuous-test-suite-aistudio-loop-characterization.ts). - Vertex —
credentials.vertex.baseURLvia Express Mode (apiKeywith no project/location). The suite header is explicit that this is the only offline route: "Vertex authenticated through ADC before every request, which ignores an endpoint override, so a stand-in received nothing at all" (continuous-test-suite-vertex-loop-characterization.ts). - Bedrock —
AWS_ENDPOINT_URL_BEDROCK_RUNTIME+ fakeAWS_ACCESS_KEY_ID/AWS_SECRET_ACCESS_KEY/AWS_REGION(continuous-test-suite-bedrock-loop-characterization.ts).
- AI Studio —
So line 158's claim that providers-mocked "reaches them through installMockFetch, which intercepts at the fetch layer and so does not need a caller-supplied baseURL at all" is doubly wrong: it misassigns the mechanism, and it contradicts the sentence directly above it (lines 155-157) that says the characterization suites "already drive these three deterministically" — those suites drive them through credentials.*.baseURL / AWS_ENDPOINT_URL, not installMockFetch. An implementing PR that follows the installMockFetch recommendation will find its "zero requests reached the stand-in" assertion unimplementable on Bedrock.
Suggested correction — describe the actual proven seams (this is precisely the "Answer the transport question first" content the earlier finding was asking for):
| Start from the precedent already in the repo rather than inventing one: the | |
| per-provider characterization suites (`test:vertex-loop-characterization`, | |
| `test:aistudio-loop-characterization`, `test:bedrock-loop-characterization`) | |
| already drive these three deterministically, and `providers-mocked` reaches | |
| them through `installMockFetch`, which intercepts at the fetch layer and so | |
| does not need a caller-supplied `baseURL` at all. That interception is the | |
| most likely answer for AI Studio and Vertex; Bedrock's AWS SDK client may | |
| need its own endpoint option instead. | |
| Start from the precedent already in the repo rather than inventing one: the | |
| per-provider characterization suites (`test:vertex-loop-characterization`, | |
| `test:aistudio-loop-characterization`, `test:bedrock-loop-characterization`) | |
| already drive these three deterministically against a local stand-in, and | |
| each names its seam: | |
| - **AI Studio** — `credentials.googleAiStudio.baseURL` threaded into the SDK's | |
| `httpOptions.baseUrl`. | |
| - **Vertex** — Express Mode (`credentials.vertex.apiKey` with no | |
| project/location) so ADC is skipped and the route is `credentials.vertex.baseURL`. | |
| Plain ADC cannot be stood up locally: it ignores the endpoint override. | |
| - **Bedrock** — `AWS_ENDPOINT_URL_BEDROCK_RUNTIME` plus fake | |
| `AWS_ACCESS_KEY_ID` / `AWS_SECRET_ACCESS_KEY` / `AWS_REGION`; the AWS SDK | |
| transport is not global fetch, so `installMockFetch` cannot reach it. | |
| `providers-mocked` is not a substitute: `installMockFetch` intercepts only | |
| `globalThis.fetch`, which none of these three transports requires | |
| caller-supplied via the above seams. |
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Recurring review (current head 424b469): finding still open — re-verified, not re-posted. The spec's transport paragraph is unchanged and still recommends installMockFetch as "the most likely answer for AI Studio and Vertex". Verified against the repo at this head:
test/utils/mockFetch.ts—installMockFetchreplaces onlyglobalThis.fetch(const original = globalThis.fetch; ... globalThis.fetch = ...). It cannot reach Bedrock's AWS-SDK transport regardless of endpoint.- The three characterization suites this paragraph cites as its own precedent do not use
installMockFetch.continuous-test-suite-aistudio-loop-characterization.tsroutes the real@google/genaiSDK viacredentials.googleAiStudio.baseURL→httpOptions.baseUrl;continuous-test-suite-bedrock-loop-characterization.tsusesAWS_ENDPOINT_URL_BEDROCK_RUNTIME+ fakeAWS_ACCESS_KEY_ID/AWS_SECRET_ACCESS_KEY/AWS_REGION(SigV4-real).
So lines 160-163 contradict lines 155-159 of the same paragraph, and an implementing PR following installMockFetch cannot make the "zero requests reached the stand-in" assertion work on Bedrock. Please apply the per-provider seam rewrite suggested above (or the exact recipe the characterization suites already encode).
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Fixed in #1894: the middleware plan now names the real seams (AI Studio, Vertex Express and HTTP/2 Bedrock) instead of describing fetch interception.
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| | provider | generate | stream | | ||
| | -------------------------- | -------- | ----------------------------------------- | | ||
| | `googleVertex/client.ts` | `:6635` | `:1175` `executeStream`, `:6575` `stream` | |
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MINOR — the "Entry points to change" Vertex row still omits the Anthropic branch, despite the reply claiming it was added.
Your reply to this thread says the table "now names executeNativeAnthropicStream:1244 and executeNativeGemini3Stream:1254 under executeStream, and both generate branches" — but the operative table at HEAD does not reflect that. The Vertex row still reads only :6635 (generate) and :1175 executeStream, :6575 stream, with no mention of the Anthropic-on-Vertex pair (executeNativeAnthropicGenerate:6834 / executeNativeAnthropicStream:1244).
The Order section (line 111) does now count them correctly — that half is fixed — but this "Entry points to change" table is the list an implementing PR is actually written against. An implementer who wraps only what this row names ships with Claude-on-Vertex still silently unwrapped: the exact "looks configured and does nothing" failure the spec exists to close. Keep the two sections consistent:
| | `googleVertex/client.ts` | `:6635` | `:1175` `executeStream`, `:6575` `stream` | | |
| | `googleVertex/client.ts` | `:6635` (Gemini-3 `:6845`, Anthropic `:6834`) | `:1175` `executeStream` (Gemini-3 `:1254`, Anthropic `:1244`), `:6575` `stream` | |
The Order section already carries the annotation; mirror it here so the implementation table is the complete seam list.
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Recurring review (current head 424b469): finding still open — re-verified. The "Entry points to change" table's Vertex row is unchanged: | googleVertex/client.ts | :6635 | :1175 executeStream, :6575 stream |. It still names only the Gemini-3 paths, with no mention of the Anthropic-on-Vertex pair, even though the Order section (line ~111) counts all four loops. An implementer wrapping only what this row names ships with Claude-on-Vertex still silently unwrapped. Please mirror the Order section: add the Anthropic branches to the Vertex row (e.g. :6635 (Gemini-3 :6845, Anthropic :6834) / :1175 executeStream (Gemini-3 :1254, Anthropic :1244), :6575 stream).
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NEEDS_WORK — docs-only specification; the review spent itself on factual accuracy of the code/test claims. The revision incorporated all prior findings, but two remain open — one a genuine factual error introduced by the fix (transport mechanism), one a stale operative table.
Prior findings accepted as addressed (verified at HEAD
Checked and clean (verified absence, not omission): all seven entry-point line numbers; all nine gate script names exist in Impact note: docs-only diff, so blast radius was assessed on the code claims (each finding names the out-of-diff code/test it affects) rather than the diff. Code graph built and current (17,164 nodes / 145,822 edges, 104s old). Author: applying the two inline rewrites (finding A on line 155-162, finding B on line 67) clears the last two findings. |
`middleware` is public on generate() and stream(), but it is applied in exactly one place — wrapping the model via getAISDKModelWithMiddleware — and only four call sites reach it: openaiChatCompletionsBase (generate and stream), anthropic (generate) and amazonSagemaker (generate). googleVertex, googleAiStudio and amazonBedrock are on none of them. All three override generate() and executeStream() with native paths that never wrap the model, so transformParams, wrapGenerate and wrapStream never fire for them. Only onFinish works, because it is special-cased separately. The sharp consequence: a caller who configures blocking guardrails and points at Vertex gets no error and no filtering — it looks configured and does nothing. This is pre-existing and was acknowledged twice on purpose — in 2026-09-03-remove-remaining-ai-sdk-plan.md and under "Not in this PR" in the stream-middleware PR — so it is a gap the native migration widened, not one it introduced. The spec names the entry points to change per provider, takes #1636's shape as the template together with the four corrections review forced out of it (wire conversion after transformParams, a terminal finish part, tolerating a middleware that never calls doStream, forwarding cancellation), orders the work AI Studio then Vertex then Bedrock with one PR each, and specifies the red-first cases — including that the blocking-guardrail case must assert ZERO requests reached the stand-in, which is the one that fails loudest today. It also carries the two traps this repo has already paid for: payloads in assertion messages silently downgrade a failure to a skip, and mixing the src and dist module graphs in one suite breaks stubs and instanceof with a clean typecheck.
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Yama recurring-review pass — state confirmation (head Verdict unchanged: NEEDS_WORK. This is a docs-only spec; the review continues to spend itself on factual accuracy of the code/test claims. Current head
Prior findings accepted as addressed (verified at this head, not re-posted): the "Five call sites" count, Checked and clean this pass: all page‑wire factual anchors — Author: applying the two inline rewrites (the |
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NEEDS_WORK
Two findings remain open, both verified at the current head 424b469:
- MAJOR — the "Answer the transport question first" paragraph still recommends
installMockFetchas "the most likely answer for AI Studio and Vertex", which is factually wrong and contradicts the characterization suites it cites.installMockFetchpatches onlyglobalThis.fetch(test/utils/mockFetch.ts), so it cannot reach Bedrock's AWS-SDK transport; and the three characterization suites point these providers at a local server viacredentials.googleAiStudio.baseURL/credentials.vertex.baseURL(Express Mode) /AWS_ENDPOINT_URL_BEDROCK_RUNTIME, notinstallMockFetch. Thezero requests reached the stand-inassertion is therefore unimplementable as written on Bedrock. (Line 155-162.) - MINOR — the "Entry points to change" table's Vertex row still names only the Gemini-3 paths (
:6635/:1175,:6575); the Anthropic-on-Vertex branches (executeNativeAnthropicGenerate:6834/executeNativeAnthropicStream:1244) are omitted even though the Order section counts four loops. An implementer wrapping only the table's rows ships with Claude-on-Vertex still silently unwrapped. (Line 67.)
Inline rewrites are attached to both threads.
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…uides and plans Fixes the docs-accuracy review threads left open on merged PRs. Each claim was re-checked against the code on this checkout before editing. CLAUDE.md - CI-skip section: GitHub skips the push and pull_request runs when the head commit holds a directive, so the required check stays Pending and blocks the merge. `Reject CI-Skip Directives` is only a backstop and its regex does not cover a skip-checks trailer. (T3814059894-1, #1365) - Rule 15 allow list: the closed Grandfathered block is legacy debt without a per-file header and may shrink, never grow; same note beside the list in eslint.config.js. (T3818474525-allow-docs, #1378) - Audit snippet: the && chain moves into an `if`, so a failing audit cannot end a `set -e` caller's shell before the worktree cleanup. Proven with a bash `set -e` control. (T4051898811-1, #1676) - "Reading a CI result": incidents 1, 2 and 4 are the absence-of-signal mistake, 3 is its inverse. (T4042254379-intro-first-four, #1716) Provider and reference docs - openai.md and providers/index.md: gpt-5.4 context is 1.05M (mini and nano stay 400K), matching contextWindows.ts. (T4114160945 and T4114105048, #1824; one defect raised twice) - deepseek.md: close the unbalanced backtick that leaked into the search index. (T4112589028-b, #1800) - pareto-inference.md: no context window is published; 131,072 is a catalog fallback, not a floor or a vendor figure. (T4125607242, #1848) - docs/index.md: count MCP servers consistently. (T4072651139, #1776) - provider-selection.md: the Streaming row covers text-generation providers only; decision-only providers (four, not three) use decide(). (T4115057665, #1820) - README.md: drop the hand-kept tool-support counts and stop grouping LiteLLM with the zero-configuration local runtimes, since it needs a running proxy. (T4113418122-readme-count-stale-now, #1816; T4072651184, #1776) - openai-compat-catalog.md: every catalog provider except Groq maps TimeoutError to NetworkError. (T3806464799, #1353) - SAFETY-PRIMITIVES.md: only no-inline-secret-regex and provider-typed-errors still apply; SSRF, stream-span and isNeuroLink bypasses are review-only. (T3790049900-1, #1334) Plans - middleware plan: providers-mocked has no AI Studio section and is construction-only for Vertex and Bedrock; name the three real seams. (T3950529360#1, #1656) - dead-code-purge plan: record that the removal shipped in the major v11.0.0 and that there is no replacement for the removed types. (PF-T3790294047, #1335) - onboarding-playbook plan: repo-relative commands instead of machine-local paths, drop the uncommitted scratch spec links, "Every Tier 3+ provider" ends with a manifest (Tier 2 is declared in its catalog JSON), and the three misplaced closing fences are moved so the duplicate "Verification commands" H2s are gone. (T3790294048, T3790294049, T3790294054, #1335) Tooling - verify-provider-onboarding now requires addedInPR, filesTouched and manualTestStatus in a hand-written provider's manifest, as the manifests README already said. xor and perplexity-decider gain manualTestStatus "ci-mocked-only"; README lists "verified-live". New case in the provider-structure suite runs the real tool against a scratch manifests tree: red without the validator change, green with it. (T3790294060-a, #1335) - test-search-index-reproducibility asserts git merge-file could run, so a missing git reports ENOENT instead of a merge conflict. (T4108958700-git- guard, #1794) Regenerated: docs-site/static/search-index.json via the docs build; a second build leaves it byte-identical. Fixes from the review of this PR, found after it was opened: - openai.md: GPT-6 (September 2026) is newer than GPT-5.4 (March 2026), so the guide no longer calls GPT-5.4 the newest or the latest. - onboarding-playbook plan: the Tier 2 bullet described a hand-written catalog row and a descriptor row; a Tier 2 provider is one JSON file under src/lib/providers/catalog/, and the onboarding gate checks that file instead of a manifest. Skipped or deferred: - T3810290322+T3810299660 (a link from tiers/README.md back to its parent): not done. The first attempt added a bare README key to LINK_MAPPINGS in sync-docs.ts, which would have sent about 7,500 API-reference links to the provider-integration README instead of the API index. It was reverted; a fix needs a link rule scoped to provider-integration/tiers. - PF-T3790294047 is only partly fixed: the outcome note is in the plan, but docs/MIGRATION.md still has no v11.0.0 entry. perplexity-decider is marked ci-mocked-only, the conservative value; its owner may upgrade it if the live probe counts. The catalog description of pareto-inference still says "conservative floor"; that is catalog data, left alone to avoid a codegen change in a docs commit.
…uides and plans Fixes the docs-accuracy review threads left open on merged PRs. Each claim was re-checked against the code on this checkout before editing. CLAUDE.md - CI-skip section: GitHub skips the push and pull_request runs when the head commit holds a directive, so the required check stays Pending and blocks the merge. `Reject CI-Skip Directives` is only a backstop and its regex does not cover a skip-checks trailer. (T3814059894-1, #1365) - Rule 15 allow list: the closed Grandfathered block is legacy debt without a per-file header and may shrink, never grow; same note beside the list in eslint.config.js. (T3818474525-allow-docs, #1378) - Audit snippet: the && chain moves into an `if`, so a failing audit cannot end a `set -e` caller's shell before the worktree cleanup. Proven with a bash `set -e` control. (T4051898811-1, #1676) - "Reading a CI result": incidents 1, 2 and 4 are the absence-of-signal mistake, 3 is its inverse. (T4042254379-intro-first-four, #1716) Provider and reference docs - openai.md and providers/index.md: gpt-5.4 context is 1.05M (mini and nano stay 400K), matching contextWindows.ts. (T4114160945 and T4114105048, #1824; one defect raised twice) - deepseek.md: close the unbalanced backtick that leaked into the search index. (T4112589028-b, #1800) - pareto-inference.md: no context window is published; 131,072 is a catalog fallback, not a floor or a vendor figure. (T4125607242, #1848) - docs/index.md: count MCP servers consistently. (T4072651139, #1776) - provider-selection.md: the Streaming row covers text-generation providers only; decision-only providers (four, not three) use decide(). (T4115057665, #1820) - README.md: drop the hand-kept tool-support counts and stop grouping LiteLLM with the zero-configuration local runtimes, since it needs a running proxy. (T4113418122-readme-count-stale-now, #1816; T4072651184, #1776) - openai-compat-catalog.md: every catalog provider except Groq maps TimeoutError to NetworkError. (T3806464799, #1353) - SAFETY-PRIMITIVES.md: only no-inline-secret-regex and provider-typed-errors still apply; SSRF, stream-span and isNeuroLink bypasses are review-only. (T3790049900-1, #1334) Plans - middleware plan: providers-mocked has no AI Studio section and is construction-only for Vertex and Bedrock; name the three real seams. (T3950529360#1, #1656) - dead-code-purge plan: record that the removal shipped in the major v11.0.0 and that there is no replacement for the removed types. (PF-T3790294047, #1335) - onboarding-playbook plan: repo-relative commands instead of machine-local paths, drop the uncommitted scratch spec links, "Every Tier 3+ provider" ends with a manifest (Tier 2 is declared in its catalog JSON), and the three misplaced closing fences are moved so the duplicate "Verification commands" H2s are gone. (T3790294048, T3790294049, T3790294054, #1335) Tooling - verify-provider-onboarding now requires addedInPR, filesTouched and manualTestStatus in a hand-written provider's manifest, as the manifests README already said. xor and perplexity-decider gain manualTestStatus "ci-mocked-only"; README lists "verified-live". New case in the provider-structure suite runs the real tool against a scratch manifests tree: red without the validator change, green with it. (T3790294060-a, #1335) - test-search-index-reproducibility asserts git merge-file could run, so a missing git reports ENOENT instead of a merge conflict. (T4108958700-git- guard, #1794) Regenerated: docs-site/static/search-index.json via the docs build; a second build leaves it byte-identical. Fixes from the review of this PR, found after it was opened: - openai.md: GPT-6 (September 2026) is newer than GPT-5.4 (March 2026), so the guide no longer calls GPT-5.4 the newest or the latest. - CLAUDE.md: the CI-skip paragraph still blamed the %s-only format check for the bypass, which contradicted the sentence before it. GitHub skips the whole workflow before any step runs, so the paragraph now says the format check is not the cause. - onboarding-playbook plan: the Tier 2 bullet described a hand-written catalog row and a descriptor row; a Tier 2 provider is one JSON file under src/lib/providers/catalog/, and the onboarding gate checks that file instead of a manifest. Skipped or deferred: - T3810290322+T3810299660 (a link from tiers/README.md back to its parent): not done. The first attempt added a bare README key to LINK_MAPPINGS in sync-docs.ts, which would have sent about 7,500 API-reference links to the provider-integration README instead of the API index. It was reverted; a fix needs a link rule scoped to provider-integration/tiers. - PF-T3790294047 is only partly fixed: the outcome note is in the plan, but docs/MIGRATION.md still has no v11.0.0 entry. perplexity-decider is marked ci-mocked-only, the conservative value; its owner may upgrade it if the live probe counts. The catalog description of pareto-inference still says "conservative floor"; that is catalog data, left alone to avoid a codegen change in a docs commit.
…uides and plans Fixes the docs-accuracy review threads left open on merged PRs. Each claim was re-checked against the code on this checkout before editing. CLAUDE.md - CI-skip section: GitHub skips the push and pull_request runs when the head commit holds a directive, so the required check stays Pending and blocks the merge. `Reject CI-Skip Directives` is only a backstop and its regex does not cover a skip-checks trailer. (T3814059894-1, #1365) - Rule 15 allow list: the closed Grandfathered block is legacy debt without a per-file header and may shrink, never grow; same note beside the list in eslint.config.js. (T3818474525-allow-docs, #1378) - Audit snippet: the && chain moves into an `if`, so a failing audit cannot end a `set -e` caller's shell before the worktree cleanup. Proven with a bash `set -e` control. (T4051898811-1, #1676) - "Reading a CI result": incidents 1, 2 and 4 are the absence-of-signal mistake, 3 is its inverse. (T4042254379-intro-first-four, #1716) Provider and reference docs - openai.md and providers/index.md: gpt-5.4 context is 1.05M (mini and nano stay 400K), matching contextWindows.ts. (T4114160945 and T4114105048, #1824; one defect raised twice) - deepseek.md: close the unbalanced backtick that leaked into the search index. (T4112589028-b, #1800) - pareto-inference.md: no context window is published; 131,072 is a catalog fallback, not a floor or a vendor figure. (T4125607242, #1848) - docs/index.md: count MCP servers consistently. (T4072651139, #1776) - provider-selection.md: the Streaming row covers text-generation providers only; decision-only providers (four, not three) use decide(). (T4115057665, #1820) - README.md: drop the hand-kept tool-support counts and stop grouping LiteLLM with the zero-configuration local runtimes, since it needs a running proxy. (T4113418122-readme-count-stale-now, #1816; T4072651184, #1776) - openai-compat-catalog.md: every catalog provider except Groq maps TimeoutError to NetworkError. (T3806464799, #1353) - SAFETY-PRIMITIVES.md: only no-inline-secret-regex and provider-typed-errors still apply; SSRF, stream-span and isNeuroLink bypasses are review-only. (T3790049900-1, #1334) Plans - middleware plan: providers-mocked has no AI Studio section and is construction-only for Vertex and Bedrock; name the three real seams. (T3950529360#1, #1656) - dead-code-purge plan: record that the removal shipped in the major v11.0.0 and that there is no replacement for the removed types. (PF-T3790294047, #1335) - onboarding-playbook plan: repo-relative commands instead of machine-local paths, drop the uncommitted scratch spec links, "Every Tier 3+ provider" ends with a manifest (Tier 2 is declared in its catalog JSON), and the three misplaced closing fences are moved so the duplicate "Verification commands" H2s are gone. (T3790294048, T3790294049, T3790294054, #1335) Tooling - verify-provider-onboarding now requires addedInPR, filesTouched and manualTestStatus in a hand-written provider's manifest, as the manifests README already said. xor and perplexity-decider gain manualTestStatus "ci-mocked-only"; README lists "verified-live". New case in the provider-structure suite runs the real tool against a scratch manifests tree: red without the validator change, green with it. (T3790294060-a, #1335) - test-search-index-reproducibility asserts git merge-file could run, so a missing git reports ENOENT instead of a merge conflict. (T4108958700-git- guard, #1794) Regenerated: docs-site/static/search-index.json via the docs build; a second build leaves it byte-identical. Fixes from the review of this PR, found after it was opened: - openai.md: GPT-6 (September 2026) is newer than GPT-5.4 (March 2026), so the guide no longer calls GPT-5.4 the newest or the latest. - CLAUDE.md: the CI-skip paragraph still blamed the %s-only format check for the bypass, which contradicted the sentence before it. GitHub skips the whole workflow before any step runs, so the paragraph now says the format check is not the cause. - onboarding-playbook plan: the Tier 2 bullet described a hand-written catalog row and a descriptor row; a Tier 2 provider is one JSON file under src/lib/providers/catalog/, and the onboarding gate checks that file instead of a manifest. Skipped or deferred: - T3810290322+T3810299660 (a link from tiers/README.md back to its parent): not done. The first attempt added a bare README key to LINK_MAPPINGS in sync-docs.ts, which would have sent about 7,500 API-reference links to the provider-integration README instead of the API index. It was reverted; a fix needs a link rule scoped to provider-integration/tiers. - PF-T3790294047 is only partly fixed: the outcome note is in the plan, but docs/MIGRATION.md still has no v11.0.0 entry. perplexity-decider is marked ci-mocked-only, the conservative value; its owner may upgrade it if the live probe counts. The catalog description of pareto-inference still says "conservative floor"; that is catalog data, left alone to avoid a codegen change in a docs commit.
2 participants
What
A specification, not an implementation, for the one finding from the removal audit that is still open.
The gap
middlewareis a public option ongenerate()andstream(), applied in exactly one place — wrapping the model handle viagetAISDKModelWithMiddleware(baseProvider.ts:2723). Four call sites reach it, and that is the entire list:openaiChatCompletionsBase.ts:1132openaiChatCompletionsBase.ts:1534anthropic/client.ts:1766amazonSagemaker.ts:206googleVertex,googleAiStudioandamazonBedrockappear nowhere on it. All three overridegenerate()andexecuteStream()with native paths that never wrap the model, sotransformParams,wrapGenerateandwrapStreamnever fire. OnlyonFinishworks, because it is special-cased separately.The sharp consequence: a caller who configures blocking guardrails and points at Vertex gets no error and no filtering. It looks configured and does nothing.
Not a regression
Acknowledged twice, deliberately — in
2026-09-03-remove-remaining-ai-sdk-plan.md("already bypass it for exactly this reason, so stage 3 extends an existing gap rather than inventing one") and under "Not in this PR" in #1636. A pre-existing gap the native migration widened, not one it introduced. Any implementing PR should say so.What the spec contains
transformParams; emit a terminalfinishpart with usage; tolerate a middleware that never callsdoStream(guardrails' precall path) or analytics hangs; forward cancellation or the connection leakstest:providers-mockedis not optional here: the live matrix once passed a change that broke ten of its cells, because every provider reachable from a dev machine streams and only the mocked gate serves a non-streaming bodysrc/distmodule graphs breaks stubs andinstanceofwith a clean typecheckSummary by CodeRabbit