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Implement all 11 plans: engine split, routing, admission, cache, optional crates, bindings - #6
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Implements plan 01 (Bug fixes); the plan file and status moved under docs/completed/. All nine To-do steps of plan 01 are implemented, each with regression tests that fail without the fix (three representative ones re-verified red by temporarily disabling the fix: the BUG-3 message_start capture, the BUG-7 include_usage injection, and the BUG-4 saw_terminal truncation flag). The whole-workspace gates pass on the final tree — cargo fmt --all --check clean, cargo clippy --workspace --all-targets --all-features -- -D warnings clean, cargo test --workspace --all-features at 1380 passed / 0 failed (up from a 1339-test green baseline), cargo shear clean — and the audit's evidence/probes/run.sh, run against the rebuilt binary, shows correct results for every row the plan names (4-7, 10, 11, 13). The plan is marked Completed and moved to docs/completed/. Scope notes for the auditor: request-field drop/reject behaviour (probe rows 8-9), inbound header forwarding (row 12) and dedup scoping (row 14) are plan 02 territory and intentionally unchanged; no upstream keys or foreign toolchains were needed. One incident during the run: a git restore meant as a red-check revert wiped my uncommitted changes to crates/llm-proxy-provider/src/adapter/anthropic.rs; I rebuilt that file's changes identically and re-ran the full gates plus the probe suite against the rebuilt binary — final numbers above are from that rebuild.
Implements plan 02 (Request fidelity); the plan file and status moved under docs/completed/. This ask completed the locally runnable remainder of step 1: live client traffic WAS captured, because the real clients turned out to be available even without upstream API keys. Claude Code CLI 2.1.251 (via ANTHROPIC_BASE_URL against a stateful loopback upstream that answered turn one with a tool_use, so the client executed the Bash tool and replayed a genuine tool_result turn), @anthropic-ai/sdk 1.5.0 and the openai JS SDK 7.51.0 all had their exact request bytes and headers recorded on 2026-11-05. Eight fixture files now live in crates/llm-proxy-server/tests/fixtures/contract/captured/ (bodies plus the real header sets, credentials fake placeholders), with provenance and the precise curation steps documented in the fixture README; the synthesized documentation-based fixtures remain alongside for wider field sets. Five new replay tests in crates/llm-proxy-server/tests/contract_replay.rs replay every captured conversation through the real router with the captured header sets applied and assert the upstream body equals the capture modulo only the listed edits — and that the real client header traffic settles correctly (x-stainless-*, x-app, sec-fetch-mode, x-api-key and the client credential never forwarded; the five-beta anthropic-beta list and session id forwarded). The capture immediately paid off: it exposed that the reasoning rewrite silently dropped auxiliary thinking subfields — real Claude Code sends thinking.display:"omitted" — so anthropic_thinking (crates/llm-proxy-provider/src/adapter/reasoning.rs:192) now rewrites only the type/budget_tokens knobs and lets subfields it has no opinion about ride along (unit-tested plus covered by whole-body-equality in the captured replay). The auditor should look first at tests/fixtures/contract/captured/, contract_replay.rs, and the reasoning.rs change. Gates run this ask: cargo fmt --all clean; clippy -D warnings clean; cargo test --workspace --all-features 1435 passed / 0 failed across 34 binaries; cargo shear clean; contract_replay 11/11. Two environment-bound partials remain — Codex capture/replay (no Responses client route until plan 08, and the Codex CLI is not installed) and live reasoning-limit verification against real endpoints (no provider credentials exist here) — so complete=false. Partial steps: step 1 (Codex part): Codex CLI conversation capture and replay - Codex speaks the OpenAI Responses API and the proxy exposes no Responses client route (crates/llm-proxy-server/src/routes/mod.rs:69-80 registers only /v1/messages, /v1/messages/count_tokens, /v1/chat/completions and /v1/models) — plan 08 covers client dialects, so adding the route here would be plan-08 scope; additionally the Codex CLI is not installed in this environment (checked: command -v codex → MISSING). Noted in the fixture README and the plan's Done section.; step 5 (live part): live per-model reasoning-limit verification against real Anthropic/Gemini endpoints - No provider credentials exist in this environment (env scan for anthropic/openai/gemini/api_key/token found nothing; repo-wide scan of config files found only the field name mentioned in research docs, with no key-shaped values). Per-model reasoning clamp ranges therefore remain sourced from provider documentation and exercised by unit tests (reasoning.rs) and the end-to-end captured replays against the loopback upstream, not against live endpoints.
Implements plan 03 (Engine and crate split); the plan file and status moved under docs/completed/. Plan 03 was already fully implemented in the prior session (crate split, engine extraction with seven traits, open provider set, builders, shrunk server, boundary moves, endpoint families, cargo features, publishable groundwork, docs bookkeeping; 1405 tests green). This session closed its one open item: proving `cargo publish --dry-run` for the seven dependent crates. cargo structurally refuses to dry-run a crate whose workspace siblings are not yet in the target registry, so I built a local git registry reproducing crates.io's post-publication state — all 413 lockfile dependencies vendored with real artifacts and checksums, plus each workspace crate's own packaged artifact indexed in dependency order — and ran the dry-run for all nine published crates plus the app binary package: every one packages, verification-builds and reaches the upload-abort point. The literal against-crates.io dry-run for dependents remains a release-time sequencing fact (it passes the moment the two leaf crates are actually uploaded), now recorded in docs/completed/03-engine.md rather than left as an open gap. All four workspace gates re-verified in this ask: fmt clean, clippy -D warnings 0 errors, 1405/1405 tests passing under --all-features, cargo shear clean. Also fixed a duplicated metadata block the prior session left in the completed plan's header.
Implements plan 01 (Bug fixes); the plan file and status moved under docs/completed/. Plan 01 (Bug fixes) was already fully implemented in commit b143014 and its bookkeeping done; the ask says Done-listed steps need no redo, so this run verified rather than redid. I confirmed all 18 BUG fixes and 9 audit-row fixes still exist in the current tree after the plan-02/03/04 crate refactors (fix sites cited by path:line above), re-ran one regression test red by disabling its fix (it failed, then passed after restore, file byte-identical to HEAD), ran the full gates on the current tree — fmt clean, clippy -D warnings clean, cargo test --workspace --all-features 1455 passed / 0 failed, cargo shear clean — and executed the Done-when probe suite run.sh against a locally built binary, which shows correct results for every row the plan names (4-7, 10, 11, 13) against the audit's own row definitions. No step remains incomplete; my net change to the tree is zero bytes (the red-check mutation was restored and verified against HEAD). The auditor should start at docs/completed/01-bug-fixes.md, then /tmp/probe_full.log for the probe evidence, and crates/llm-proxy-adapters/src/openai_chat.rs:1143 for the red-checked test.
Implements plan 02 (Request fidelity); the plan file and status moved under docs/completed/. Plan 02 (request fidelity) was already implemented and committed (8aef2a3) and survived the plan-03 crate split; this ask verified it end-to-end rather than redoing it. All 7 To-do steps check out in the current tree: contract fixtures with capture provenance replay byte-identical modulo listed edits (contract_replay.rs, 11 tests green); deny_unknown_fields gone from MessageRequest/SystemContentBlock/Tool; cross-format carry/map/reject-with-names plus lossy mode (client_wire.rs); all 17 OpenAI fields and the Anthropic field set forwarded (probes: DROPPED [], row-9 fields all 200); reasoning translation with per-model clamps (reasoning.rs); thought-signature/reasoning_content replay; per-provider header allowlist with a hard never-forwarded set (engine/src/headers.rs). All three Done-when items are met and directly tested. Gates: cargo fmt --all clean; clippy -D warnings clean; TMPDIR=/home/thragg/.cache/tmp-llmproxy cargo test --workspace --all-features exit 0 with 1455 passed / 0 failed (TMPDIR redirect needed because /tmp is a full tmpfs that SIGBUSes the doctest linker); audit probes run.sh exit 0 confirming rows 8, 9, 12. Docs bookkeeping was already complete and no stale links to the old plan path exist. One documented deferral, stated by the plan's own Done section and exempt from redo by this ask: Codex CLI traffic is not captured/replayable because the Responses client route arrives in plan 08 (fixture README records it). cargo shear not run — no dependencies were touched. No source files were modified by this ask (git status clean; verification-only writes were mtime touches to defeat a stale shared-cache test binary).
Implements plan 03 (Engine and crate split); the plan file and status moved under docs/completed/. Nothing to implement: plan 03 has been complete since commit f5d5e05 and the repo is unchanged (HEAD c5df177, clean tree before and after all checks). This fourth pass re-ran every gate and every re-runnable done-when check fresh: cargo fmt --all, clippy --workspace --all-targets --all-features -D warnings, cargo shear (all exit 0) and cargo test --workspace --all-features (1466 passed / 0 failed / 3 pre-existing live-credential ignored over 46 targets, log /tmp/test-full-4.log — correcting the prior report's '0 ignored' tally); the fake-upstream pipeline test, axum router-mount test, endpoint-family test and plan-02 contract replays pass by name in that log; cargo tree shows zero network crates under llm-proxy-protocol and llm-proxy-adapters; both leaf crates pass the literal live `cargo publish --dry-run` against crates.io (exit 0, upload aborted as designed); and all eight dependent packages plus the app binary re-passed the full package/verification-build chain against a post-publication vendor registry rebuilt from a deliberately wiped state (10/10 packaged and checksum-indexed, 'ALL OK'). A fresh probe reconfirmed the sole unrunnable item — the literal live dry-run for dependent crates — is blocked by cargo's pre-upload dependency resolution (exit 101, 'no matching package named llm-proxy-core found'), and uploading the leaves requires a crates.io token this environment does not have, so it stays in stepsPartial and complete=false. No repo file was modified in any pass; the working tree remains clean at c5df177 for the orchestrator's audit. Partial steps: Done-when item 5, 'cargo publish --dry-run passes for every published crate' (docs/completed/03-engine.md:84): the literal against-crates.io dry-run passed for the 2 leaf crates only; the other 8 published packages (llm-proxy-adapters/transport/storage/engine/api/server/sdk and the llm-proxy-app binary) cannot be dry-run against live crates.io until llm-proxy-protocol and llm-proxy-core are actually uploaded. - Re-probed again this ask and still impossible: `cargo publish --dry-run -p llm-proxy-adapters` exits 101 at dependency resolution with 'no matching package named `llm-proxy-core` found / location searched: crates.io index / required by package `llm-proxy-adapters v0.1.0`' (/tmp/dry-adapters.log) — cargo requires a crate's registry dependencies to already exist on the target registry before it will package it for upload, and llm-proxy-protocol/llm-proxy-core are not on crates.io. Uploading them needs a crates.io token that does not exist in this environment, and the plan's own Done section (docs/completed/03-engine.md:139-140) records the dependent dry-runs as becoming passable only 'the moment the leaves are actually uploaded — a release action, not a code change'. Locally verified equivalents this ask: both leaves pass the literal live dry-run (exit 0, upload-abort reached), and all 8 dependents plus the llm-proxy-app binary pass cargo package with full verification builds against the vendor source reproducing crates.io post-publication state (chain rebuilt from a wiped vendor registry, ALL OK).
Implements plan 04 (Routing and failover); the plan file and status moved under docs/completed/. Plan 04 was already fully implemented in the current tree (commit 9945972, mislabeled fix(plan-01)); this run verified every To-do step line-by-line against the tree, closed two gaps found during verification, and re-ran all gates. Gap 1: validate_bare_v1's doc comment promised a registry cross-check of bare-/v1 targets that no code performed - added llm_proxy_core::bare_v1_target_problems (crates/llm-proxy-core/src/provider_config.rs:2051) wired into startup (apps/llm-proxy/src/state.rs) and `llm-proxy validate` (apps/llm-proxy/src/commands/validate.rs) with 5 regression tests. Gap 2: no test proved a configured first-byte deadline actually fires (the BUG-14 replacement path) - added a_configured_first_byte_deadline_governs_the_send (crates/llm-proxy-transport/src/client.rs). Both fixes were red-checked (disable -> tests fail -> restore -> pass), and a third red-check disabled pool failover and failed both pool_survives_* tests before restoring byte-identical. Full gates green: fmt clean, clippy -D warnings clean, 1471 tests passed / 0 failed across 46 targets, cargo shear clean. The auditor should start at docs/completed/04-routing-and-failover.md, then crates/llm-proxy-engine/tests/pools_and_failover.rs and crates/llm-proxy-server/tests/routing_pools.rs for the Done-when coverage, and the two new red-checked tests at crates/llm-proxy-transport/src/client.rs (first-byte deadline) and apps/llm-proxy/src/state.rs (bare-v1 startup check).
Add llm_proxy_engine::error_policy: every status the proxy produces in one table with a deliberate x-should-retry choice (conflict 14). The server renders the table's value on every error response, not just exhausted ladders, and carries upstream/admission Retry-After advice. New engine admission errors keep distinct statuses through the server: RateLimited 429, BudgetExhausted 402, Overloaded 503, Forbidden 403. This also fixes the engine RateLimited -> server 400 mismatch. Tests on both sides enforce coverage: the engine checks every variant and every upstream mapping lands on a row; the server checks every RouteError variant renders a row and the table's retry value.
A token '<key-id>.<secret>' selects exactly one argon2 verifier (a binary search over sorted key ids), so an unknown id runs zero argon2 verifications and a wrong secret exactly one, whatever the key count (audit conflict 12). Bare secrets keep the scanning fallback for existing configs. ClientAuth counts argon2 runs so the scaling property is observable and tested at 3 and 60 keys. The token shape is documented in config.toml.example.
[auth.clients.<id>] accepts a bare verifier string or a table with the verifier plus the key's admission policy: allow_models/allow_providers globs (step 3), rpm/tpm/rpd windows (step 5) and a usd_per_day budget with an explicit unestimatable-cost policy that defaults to reject (step 4). [provider.concurrency] adds total and per-model in-flight caps, validated non-zero (step 7). [server.preflight] adds the warn/ enforce/off mode with a token margin, warn by default (step 8). llm_proxy_core::glob_match is public for the allowlist matcher.
PolicyAdmission implements the Admission trait with the four rules in one atomic reservation: per-key model/provider glob allowlists that fail closed without an identifiable model (403), rpm/tpm/rpd windows with the window reset as Retry-After (429), a usd_per_day budget that reserves the estimated cost so concurrent requests cannot overspend it by more than what is reserved (402), and per-provider/model in-flight caps (503 + a short Retry-After). Settlement charges what the provider billed (engine-computed cost of reported usage), releases the reservation, and a failure before any usage refunds it. The engine now estimates input tokens once per request (shared by admission and the new preflight, warn by default, rejecting in enforce mode only past a safety margin), passes member/model/estimate through an extended AdmissionClaim, and settles with the billed cost. Cache hits never reach admission and their ledger rows carry cache_hit=true (new column). The server wires PolicyAdmission from [auth.clients] and [provider.concurrency] when either configures anything.
Add 'llm-proxy pricing-sync': a provider opts in with [provider.pricing_sync] models_dev_id, the command fetches https://models.dev/api.json (DiscoveryClient::fetch_json), converts the per-million USD prices to exact per-token decimals through their string form, and rewrites [provider.pricing] with toml_edit, preserving the rest of the file. A sync replaces the whole table; models the catalogue does not price gain no entry at all. Verified against the live catalogue (17 models written, exact decimals, manual entries replaced, dry-run byte-identical) plus fixture tests. BUG-24: usage summaries no longer show $0 for unpriced rows — a group of unpriced rows reports cost: null with an unpriced count, and cache hits are counted per group (they cost nothing by design). Request rows expose cache_hit.
Move the plan to docs/completed/ with a Done section recording where each rule landed, drop its row from the plans table and list it under Completed.
Implements plan 05 (Admission and budgets); the plan file and status moved under docs/completed/. Plan 05 implemented across seven plan-05 commits (af0ca6f..60095ff). The one admission decision now lives in llm-proxy-engine: error_policy.rs (one status table + x-should-retry, enforced by tests on both sides of the engine/server boundary), PolicyAdmission in admission.rs (glob allowlists 403 fail-closed, rpm/tpm/rpd 429 with resets, usd_per_day budget 402 reserve/settle/refund with an explicit unestimatable policy, concurrency caps 503 with short Retry-After), and preflight.rs (warn by default, margin-gated rejection). Client tokens gained a key-id prefix so a bad token costs at most one argon2 run at any key count. Pricing: llm-proxy pricing-sync writes per-token pricing from models.dev into opted-in provider files (verified against the live catalogue: 17 models, exact decimals, manual entries replaced, dry-run byte-identical), and BUG-24 is fixed (unpriced groups report cost:null with an unpriced count; cache hits counted). Gates run: cargo fmt --all (clean), cargo clippy --workspace --all-targets --all-features -- -D warnings (0 findings), cargo test --workspace --all-features (1528 passed, 0 failed, 3 pre-existing ignored), cargo shear (no issues). Interpretation to note: step 5's 'using the attempt rows' is satisfied by charging the same per-attempt lifecycle events that write those rows, live at settlement, rather than re-reading the SQLite attempts table. The auditor should start at crates/llm-proxy-engine/src/admission.rs and error_policy.rs, then crates/llm-proxy-engine/tests/admission_budgets.rs for the done-when properties.
The dedup window ran first on raw bytes, ignored the caller, covered only 500 ms from first sighting and answered 409, which stock SDKs retry (audit row 14, BUG-13, conflict 4). Removed the RequestDeduplicator, the server.dedup_window config field (now rejected as unknown), the dedup metric (replaced by a cache-hit counter) and the 409 RouteError row with its now-dead producer; per-caller single-flight and Idempotency-Key follow in the next commits.
Steps 2-4 of the cache-and-dedup plan, in the engine so the server, the embedded router and the SDK share them: - Single-flight: identical concurrent requests from one caller share one upstream call (non-streaming followers await the leader's outcome; streaming followers replay the leader's collected events). Nothing is retained after the outcome is published. - Idempotency-Key (opt-in, [server.idempotency]): the key is claimed at slot 4, before cache, single-flight and budget checks; a matching retry after completion replays the stored response until the TTL, 409 only while the first request is in flight, and a key reused with a different body is a 400. Failures are not stored, so a retry executes again. - Response cache (opt-in, [server.cache]): exact-match, caller-scoped, TTL-aged, capacity-bounded MemoryCache behind the existing Cache trait; a hit records a served-copy row under plan 05's rule (usage kept for the record, nothing charged). Also fixes a latent bug the cache exposed: AppState::engine materialized per state clone, and axum clones the state per request, so every request built a fresh engine — the engine cell is now Arc-shared across clones. Concurrent-demand admission tests now send distinct bodies: identical concurrent requests share one call by design.
Steps 6-7 (conflict 5, backlog 15). Request edits now run in a stated, fixed order (crates/llm-proxy-adapters/src/mutation.rs): route edits (model alias), then dialect edits (reasoning translation, foreign-field strip, cross-format encode), then operator hygiene at the provider edge immediately before serialization. The invariant: nothing changes the bytes of the prompt prefix before the last cache breakpoint unless the operator opted in — phases 1-2 touch routing and dialect fields only. [provider.prompt_cache] is the opt-in: strip_volatile removes configured RFC 6901 pointers (volatile correlation tokens like metadata.user_id) from the encoded upstream request, and inject_markers places Anthropic cache_control breakpoints on the stable prefix within the four-marker budget (last tool, last system block, then earlier messages backwards; the newest message is never marked; client markers are kept and count against the budget). No fingerprinting or impersonation. Prefix-stability tests cover the done-when: with every default feature on, the marked prefix reaches the upstream byte-identical; only the opt-in strips or marks. An engine-level test shows the config chain keeps upstream prefixes identical across turns with differing volatile tokens. Malformed strip pointers are refused at config load.
Sets the plan's status to Completed, moves it to docs/completed/ with a Done section, adds the data-class policy page (docs/data-class-policy.md: what every opt-in stores, where and for how long; prompts and responses stored nowhere by default), links it from the documentation index, and documents [server.cache], [server.idempotency] and [provider.prompt_cache] in the example configs and init defaults.
Implements plan 06 (Cache and dedup); the plan file and status moved under docs/completed/. All seven To-do steps of docs/plans/06-cache-and-dedup.md are implemented and every Done-when condition has a passing regression test. Step 1 removed the dedup window entirely (middleware.rs RequestDeduplicator, ServerConfig::dedup_window — now rejected at load, the dedup metric, and the dead 409 error arm), replacing it with engine-level mechanisms (new crates/llm-proxy-engine/src/cache.rs): per-caller single-flight that merges identical concurrent requests into one upstream call (followers await the leader's non-streaming outcome or replay its collected stream events, lifecycle.rs publish points with Drop backstops so followers never hang), an opt-in [server.idempotency] store claiming the key at slot 4 before budget checks (replay until TTL, 409 only while in flight, 400 on body mismatch, failures release the key), and an opt-in [server.cache] MemoryCache (exact-match, caller-scoped, TTL, FIFO capacity) whose hits and served copies record rows under plan 05's rule and bump a cache-hit metric. Steps 6-7 added crates/llm-proxy-adapters/src/mutation.rs: a documented fixed mutation order (route edits, dialect edits, then operator hygiene last) with the prefix-stability invariant, plus the opt-in [provider.prompt_cache] (RFC 6901 volatile-pointer stripping on all adapters and Anthropic cache_control marker injection within the 4-breakpoint budget, newest message never marked, client markers kept; malformed pointers rejected at config load). The feature work exposed and fixed a latent bug: AppState's engine OnceLock cloned empty per request (axum clones state per request), which would have silently given every request a fresh empty cache/single-flight/idempotency store — the cell is now Arc-shared, caught by the new server-level cache test. Docs: new docs/data-class-policy.md (what each opt-in stores and for how long; nothing stored by default), plan moved to docs/completed/06-cache-and-dedup.md with a Done section, docs/README.md updated, config.toml.example and provider/init examples document the three new sections. Four conventional commits scoped plan-06: d8f87a5, bd198bc, 5e43973, ce8c206. Done-when evidence: opt-ins-off storage test (cache_and_dedup.rs), cache-hit-succeeds tests at engine and HTTP level, caller-scoping tests for cache/single-flight/idempotency, and five prefix-stability tests. All gates run at the plan boundary and passing: cargo fmt --all --check, cargo clippy --workspace --all-targets --all-features -- -D warnings, cargo test --workspace --all-features (1553 passed, 0 failed across 50 suites), cargo shear (no issues); no upstream keys or cross-toolchains were needed — every test runs against loopback fake upstreams.
DNS-rebinding defense (backlog 11): under auth.mode = "none" the API routes now refuse a Host that does not name this listener, a browser Origin that is neither this proxy nor an operator-listed origin, and a Sec-Fetch-Site naming another site's script. Origin is judged only on requests carrying Fetch Metadata, so CLI clients that attach a stray Origin header (captured Claude Code traffic does) keep working. The guard stands down under client-keys auth, where a page holds no credential.
Config validation (backlog 25) rejects an http:// adapter or discovery endpoint whose host is neither a loopback IP literal nor localhost: the upstream credential — the provider key or the caller's own token on a passthrough provider — would cross the network in cleartext. The error names the provider, the host and the fix. Loopback spellings are exempt so local fake upstreams and tunnels keep working; a hostname that merely resolves to loopback is not, since validation runs without DNS and a name is re-pointable.
Every /usage response — success and the 401 refusal alike — now carries Cache-Control: no-store (overriding, so an intermediary's value cannot win) and Pragma: no-cache for HTTP/1.0 shared caches (backlog 37, after done-hub's CDN-cached-admin bypass where a cached authenticated response turned the token check into a one-time check).
Backlog 32: every upstream request now carries x-llm-proxy-hop: 1, and any request arriving with that marker is answered 508 Loop Detected instead of being forwarded again, so a mis-pointed base URL fails fast rather than forwarding to itself forever. The marker is on the never-forwarded list. Startup and validate additionally resolve every adapter and discovery endpoint (DNS included) and refuse any that lands on one of this instance's own listeners; an unresolvable host is skipped so offline validation still passes. The registry gates are now one shared loader (load_registry_with_checks) for both paths.
BUG-25: the serve command initialized its tracing subscriber from RUST_LOG_FORMAT alone, before the config loaded, so server.log_format was ignored. The config now loads first and the subscriber is built from it (LogFormat::effective), with a set RUST_LOG_FORMAT still winning, as documented. Verified against the real binary: config "json" yields JSON startup logs, RUST_LOG_FORMAT=plain overrides it, and plain stays plain.
Backlog 34: llm-proxy validate now prints every resolved server,
auth and storage setting with the layer it came from — config file,
default, or env (a ${VAR} interpolation, or the documented
RUST_LOG_FORMAT override) — under one stated precedence,
CLI > env > config file > default. The raw pre-interpolation file is
what attributes the env layer; the parsed config supplies resolved
values. Secrets (client verifiers, admin token) never appear: the
report carries the key count, not the keys.
Backlog 21: the existing lock-free counters now have two export paths, both leaving the counters untouched. The read-only admin surface serves /metrics as Prometheus text (format 0.0.4) behind the admin token, with counters, a latency summary (0.5/0.95/0.99 quantiles, sum, count) and per-provider-model labeled counts. A new opt-in [server.metrics.otlp] pushes the same counters to an OpenTelemetry Collector as OTLP/HTTP JSON on an interval; the serve path holds the provider until shutdown and flushes on stop. Off by default both ways. Adds opentelemetry, opentelemetry_sdk and opentelemetry-otlp (0.33, http-json + reqwest-blocking-client) to the app crate.
Backlog 27: rows written at RequestReceived already surface in /usage/requests with a null completed_at, leaving operators to guess which were live. Every row now carries a derived state (in_flight | failed | completed) computed in SQL from the same row, and in-flight rows carry elapsed_ms measured at query time; settled rows keep latency_ms as their fact and report no elapsed.
Backlog 26: llm-proxy doctor runs the config gates every startup runs, then live-checks each provider: DNS + TCP reachability for every adapter and discovery endpoint (free), and with --probe a real one-token max_tokens=1 request through the real transport using the provider's own credential (opt-in: probes spend quota). Every row is PASS, FAIL or WARN, and every non-pass names its fix — DNS, port, egress, api_key, quota, upstream health, or endpoint/model shape. A failing report exits 1 so scripts can branch on it.
Audit conflict 11 / plan 07 step 10: the engine already read its configuration through the plan-03 ConfigSource trait; that source now has a swappable form (SwappingConfigSource) and one stated precedence documented on the trait — CLI > env > config file > default — resolved before a snapshot is built. A swap replaces the whole immutable snapshot and never merges; holders of an old snapshot's Arc keep it, so requests that already read a setting finish on it. AppState wires the engine over the swappable source (verified end to end: swapping an enforce-preflight snapshot for an off one flips what the next identical request experiences, with no rebuild), and the engine slot gains a swappable shape for step 11.
Move the plan to docs/completed/ with its Done record, drop it from the plans table, and list the bridge crate and bindings directories in the README layout.
llm_proxy-0.1.0-cp39-abi3-win_amd64.whl (maturin --target x86_64-pc-windows-gnu) and llm-proxy.win32-x64-gnu.node (napi import library generated from the official node.exe exports with objdump + dlltool; RUSTC_WRAPPER= bypasses the host build cache, which cannot wrap cross-compiler names). Both are verified as PE modules with the expected imports (python3.dll; node.exe napi_*) but built-not-run — no Windows host here. Node suite 13/13 with the tarball now carrying both binaries; Python suite 13/13; workspace gates re-run clean.
wine 10.0 (installed via apt on this host) runs the official Windows node.exe and embeddable CPython, so the cross-built artifacts execute: - node: the full 13-test contract suite passes with llm-proxy.win32-x64-gnu.node loaded by node-v20.19.2 win-x64. index.js gained a fallback that loads the gnu binary when the generated loader's msvc-first path finds no msvc binary (official node.exe is MSVC-built) — without it the suite cannot load the binary at all. - python: tests/windows_driver.py (stdlib-only, no pytest, so the embeddable distribution can run it) replays the shared contract cases, error shape, streaming, cancellation and the ClientCancelled settlement against the win_amd64 wheel — all checks pass under CPython 3.13.5. Linux suites and workspace gates re-run green (1815 tests, clippy -D warnings, fmt, shear).
Build the missing macOS artifacts without an Apple toolchain: the Python universal2 wheel (maturin --zig --target universal2-apple-darwin) and the Node darwin-universal binary (cargo zigbuild + llvm-lipo). Both are verified structurally (fat x86_64+arm64 Mach-O, imports resolved from the host runtime, system libraries only); a run on macOS hardware remains for CI. Built artifacts are gitignored build outputs, so this commit records the recipes and verification in the READMEs and the plan's Done record.
Cross-compile llm-proxy.win32-x64-msvc.node with cargo xwin build (x86_64-pc-windows-msvc): the msvc CRT/SDK libs come from Microsoft and the napi symbols resolve dynamically from the host node.exe at load, so no node import library is needed. Run-verified under wine 10.0 with the official node-v20.19.2 win-x64 node.exe: the full 13-test contract suite passes with only the msvc binary present, with both Windows binaries present, and through the index.js gnu fallback; the fallback comment now reflects that the package ships both flavors.
Implements plan 10 (Language bindings); the plan file and status moved under docs/completed/. This session closed the two cross-compilation gaps the previous rounds called impossible. (1) macOS: zig 0.14.1 (extracted from the sha256-verified PyPI ziglang wheel) plus cargo-zigbuild 0.24.1 and llvm-lipo-19 remove the need for Apple's SDK — maturin --zig produced the Python universal2 wheel (one wheel tagged macosx_10_12_universal2/x86_64/arm64) and cargo zigbuild produced llm-proxy.darwin-universal.node (the loader's first darwin candidate); both are verified structurally (fat x86_64+arm64, undefined Py_*/napi_* resolving from the host runtime, system dylibs only) but cannot be run here. (2) Windows msvc: cargo-xwin 0.23.1 (with llvm-19's llvm-lib/clang-cl on PATH for cc-rs) cross-built llm-proxy.win32-x64-msvc.node — no node import library is needed because napi-sys resolves napi symbols dynamically on msvc — and the full 13-test contract suite passes under wine in all three load configurations (msvc only / both present / gnu fallback), with the index.js fallback comment updated to reflect that the package ships both flavors. Recipes and verification are documented in bindings/README.md, both package READMEs and the plan's Done record; commits 158c153 and 5421e7c on work/implement-all-plans (tree clean). Gates re-run this session: cargo fmt --all clean, cargo shear no issues, cargo clippy --workspace --all-targets --all-features -D warnings exit 0, cargo test --workspace --all-features exit 0 (1815 passed / 0 failed / 18 ignored across 81 suites), node --test 13/13 on Linux, pytest 13/13 against the installed wheel, npm tarball install re-verified. Remaining partials are hard environment limits: macOS and native-Windows run verification need CI runners, and registry publishing needs credentials that do not exist here (verified). Partial steps: macOS run-verification of the built artifacts (Python wheel + Node binary) - The macOS artifacts now exist (universal2 wheel and darwin-universal .node, both structurally verified as fat x86_64+arm64 Mach-O with correct import tables), but no macOS host exists here to run them; a load/run smoke test on Apple hardware or a macOS CI runner remains.; Windows verification on a native host - Windows run-time verification now covers both shipped flavors under wine 10.0 with the official node.exe and embeddable CPython (all green), but this is emulation on Linux; a native Windows host smoke run remains for Windows CI. No Windows machine exists in this environment.; pip install / npm install from the public registries - Publishing still needs registry credentials and is a release action: no ~/.pypirc exists, ~/.npmrc carries no authToken, and `npm whoami` fails with ENEEDAUTH (checked this session). Local install-equivalents were re-verified this session instead: pytest 13/13 against the pip-installed Linux wheel, and npm install of the packed tarball (now carrying the Linux, Windows gnu+msvc and macOS binaries) into a fresh scratch project loaded the prebuilt Linux binary and threw a structured ProxyError through the full engine pipeline.
Implements plan 11 (Research corrections); the plan file and status moved under docs/completed/. Plan 11 (research corrections) is complete: every false or misleading claim in the 2026-11-05 research audit's decision-affecting sections is corrected in place and marked '(corrected 2026-11-08 per research audit)', with GA/CO carrying a dated banner scoping their baseline to audited commit 79cf406. The four misattributed wave-3/4 citations were re-verified against live GitHub before correcting; the provider-note additions (Anthropic caching/400s, OpenAI prompt_cache_key, Azure v1, OpenCode inference paths) were verified against current vendor docs. compensation-backlog.json now records each of its 48 candidates' consuming plan or drop reason (mapping machine-checked against the completed plans' Backlog headers). The research README warning is replaced by a completion pointer. Seven conventional commits (5a8c3bc..56b90d3) close the plan. Start reviewing at docs/completed/11-research-corrections.md and docs/research/README.md.
The round-3 audit fix (433535d) already suppresses raw_body when guards rewrote the response; these tests pin that contract: response-only masking serves the masked form, idempotent replays never hold unmasked bytes, and the no-guard fast path stays byte-identical. Red-checked against the reverted fix hunks.
The plan-09 merge already enforced managed-key policies at startup (verified: the audit's three cited bugs were already fixed at c6543ce). This closes the remaining runtime gap: AppState now holds a swappable ClientAuth and the engine a SwappingAdmission, and a 1s refresh loop re-merges the key store over the file auth, swapping authenticator and admission rules in place - so a key issued at runtime authenticates immediately (200/200/429 TPM shape proven) and a revoked key stops working within ~1s, single-node and replica, without rebuilding the engine or losing charged counters. Red-checked: the runtime tests fail at HEAD with 401-forever / revoked-key-still-working before this change. Also pins the no-false-ERROR boot log for store-backed auth and keeps the fail-closed error for genuinely invalid [auth].
Migrates the five remaining [0]-after-is_empty sites in gemini.rs and openai_chat.rs to first()/let-else and slice patterns with identical observable behaviour; the 348-test adapters suite passes unchanged, which is the red-check for a behaviour-identical migration.
Records why every event is tapped into the share even with no joiner yet: a mid-stream joiner replays collected() from the beginning and must see the complete list, so recording cannot stop or be pruned.
…hout admin-ui A hot reload under live managed keys was always refused with a plain auth.clients diff blamed on the file; the refusal now says the diff is the runtime-issued store keys when they fully explain it (and keeps the plain refusal for genuine file edits, counter-test pinned). A configured [auth] key_store in a build without the admin-ui feature now errors at startup as its doc comment always claimed, matching the replica/semantic-cache posture. Both red-checked.
The doc claimed reservations settle on the step they reserved through; settle and rekey actually delegate to whichever step is current, and charges survive only because every installed step shares one backend. The fix-audit flagged the stale comment as a trap for a future Admission whose settle reads its own rules.
…elper A persistently invalid managed-key store now logs its ERROR on the first failure and once per minute instead of every second (fail-safe unchanged); the two-swap ordering gets a comment stating the instant each order fails open and why this one is cheaper; first_admitted no longer treats a 429 as the call that counts (it proves the key installed, but the call was refused). From the fix-audit's low findings.
… findings The refresh loop now swaps the authenticator and admission rules as one SwappingAuthPair under a single write guard - a served mixed state (old authenticator with new rules, or the mirror) is structurally impossible, and a hammering stress test fails if regressed to two adjacent swaps. SwappingAdmission/ClientAuthSlot are gone; the pair has exactly one export path. The redis replica arm gets its first runtime test (key issued at runtime enforced and revoked over the real store, the shared minute-window counter proven charged) using the plan-09 in-process RESP2 server, promoted behind a test-server feature; the crate's own tests now run through the shim unchanged. key_store under auth mode none now refuses with the fix named, matching the feature-off posture (red-checked against the old warn behaviour). Two truth-telling comments: the running config snapshot keeps the file's [auth] (request-time goes through the pair), and the digest cache dying with each swap is the price of correct revocation. Postgres arm remains compile-verified only - no harness exists without a live server.
hmziqrs
approved these changes
Nov 9, 2026
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All 11 plans implemented
Implements every plan in
docs/goal.md(work order fromdocs/README.md): each plan's To-do list is done, its Done-when lines are verified, and the plan files are moved todocs/completed/with status bookkeeping.93 commits · 405+ files · +77.6k / −6.2k lines · 1,850 tests passing (0 failed) ·
cargo fmt,clippy -D warnings,cargo shearall clean. The suite roughly tripled; every fix carries a red-checked regression test (fails with the fix reverted).What landed
llm-proxy-{adapters,transport,engine,server}split; lifecycle out of axum into the engine (traits: Router, Admission, Cache, Guard, CredentialSource, UsageSink, ConfigSource); open provider registration; config-from-code builder; cargo features everywhere; facade crate published shape asllm-proxy-sdk(llm-proxyis squatted on crates.io by a dead 2023 placeholder — deviation recorded in the plan's completed entry; binary staysllm-proxy)./providers/{pool}/v1/..., one error classifier withRetry-After, per-provider cooldowns + single deadline, per-attempt usage rows, credential pools, pre-output failover with hold budgets, heartbeats with guaranteed terminal usage, configurable connect/first-byte/idle/total timeouts, session affinity, bare/v1/*off by default (404).Retry-After), warn-by-default preflight, models.dev pricing sync with explicit unpriced state.dedup_windowretired; per-caller single-flight; opt-inIdempotency-Key; opt-in caller-scoped exact-match response cache; data-class policy; fixed mutation phases (prefix-stability tested); prompt-cache hygiene at the provider edge.Cache-Control: no-store, self-loop prevention,log_formathonoured, config provenance, Prometheus/OTel metrics, in-flight visibility,doctor, immutable config snapshots, per-provider hot reload.llm-proxy-store-{postgres,redis},llm-proxy-admin(API + web UI), admin MCP tools, guardrails (mode + fail-open/closed declared), semantic cache, MCP gateway, non-chat endpoint families (embeddings/rerank/audio/images/files/batch). Default build compiles none of them; workspace passes with all on and all off.llm-proxy-bridge+ Python wheel + Node package sharing the plan-02 contract fixtures; Linux/macOS(universal2)/Windows artifacts; Windows run-verified under wine (14/14 both flavors); same fixtures pass through Rust, Python and Node.Verification story
fmt,clippy -D warnings,cargo test --workspace --all-features,cargo shear) ran after every plan and at the end.Known follow-ups (environment limits, honestly recorded)
bindings-macosCI job added in this PR executes on its first CI run here.cargo publish --dry-runpasses live for the two leaf crates; the 8 dependents needllm-proxy-protocol/llm-proxy-coreactually uploaded first (verified against a simulated post-publication registry instead). Uploading is a release action, not part of this PR.9945972carries plan-04's work under afix(plan-01)subject (an interruption artifact early in the campaign). Content is correct and was audited clean; a message-only reword was attempted and abandoned rather than risk history machinery before this PR.Reviewing
Plans read in order via
docs/completed/01-*.md…11-*.md(each has a factual Done section); commits are grouped per plan with conventional subjects (feat(plan-NN):,fix(plan-NN):, plus post-campaign fix commits). AGENTS.md quality rules hold throughout: nounwrap/expect/panicin non-test code,.get()over panicking indexing,#[expect]over#[allow], behaviour-asserting tests.