fix: discovery improvements, dead-code removal, tests, and docs alignment - #24
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- Format dash-separated date stamps correctly: `claude-opus-4-5-20251101` now renders "Claude Opus 4.5 20251101" instead of "Claude Opus 4 5 20251101" - Fall back to `max_tokens` for the context limit when `max_input_tokens` is absent, so deployments reporting only the OpenAI-style total get limits - Map cache read/write per-token costs from `/v1/model/info` into OpenCode's `cacheRead`/`cacheWrite` cost fields - Key the SWR model cache by `providerId@baseURL` so two providers pointing at the same proxy (possibly with different API keys) no longer share one model list
…dependency The V2 transport-bucketing path (`discoverBucket`, `buildModelV2`) has been unreachable since 0.5.0 switched fully to the config hook; nothing imported it. Delete it along with its orphaned helpers and types, and drop the `@opencode-ai/sdk` dependency it was the only consumer of — the "zero runtime deps beyond @opencode-ai/plugin" claim is now true. Also adds the vitest dev dependency and `test` script for the suite added in a follow-up commit. BREAKING CHANGE: remove previously exported but dead public types (`Transport`, `TransportPolicy`, `LiteLLMOptions`, `ModelType`). No behavior change — the config-hook plugin is untouched.
Cover the pure logic that regresses silently: model-name formatting (including version-pair/date-stamp edge cases), model categorization, base-URL normalization, and the SWR disk cache (round-trip, per-key isolation, version mismatch, max-age expiry). Tests live in `test/` so they stay out of the published tarball. CI now runs `npm test` alongside typecheck on Node 20/22.
The README still documented the dual-provider architecture removed in
0.5.0: the `litellm-responses` sibling provider, `transport` /
`responsesApiModels` / `chatApiModels` options, transport bucketing in
the How-it-works diagram, and `organizationOwner` extraction — none of
which the config-hook plugin does. The FAQ even pointed users at
`responsesApiModels` to fix a reasoning_effort error, which silently
did nothing.
Rewrite those sections around the actual single-provider + SWR-cache
flow, fix the naming example ("Claude 3.5 Sonnet"), document the cache
and background refresh, trim shipped items from the roadmap, update the
source tree, drop the redundant quickstart install step, and fix the
plugin log path in CONTRIBUTING.
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📝 WalkthroughWalkthroughThe plugin removes V2 and Responses API routing helpers, adds provider-scoped disk caching and cache pricing, improves model-name formatting, adds Vitest coverage, and updates documentation and CI to run tests. ChangesLiteLLM model flow
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to The PR improves model discovery and provider cache isolation, but model names with three-part numeric versions may still be displayed incorrectly, and providers sharing a proxy can interfere with refresh or model-injection coordination, potentially leaving a stale or incomplete model list. The documentation sequence also needs correction; merge is reasonable with owner follow-up on these bounded issues. Sequence Diagram(s)sequenceDiagram
participant OpenCode
participant Plugin
participant DiskCache
participant LiteLLM
OpenCode->>Plugin: Start session
Plugin->>DiskCache: Read provider-scoped cache
alt Cache hit
DiskCache-->>Plugin: Cached models
Plugin-->>OpenCode: Register cached models
else Cache miss
Plugin->>LiteLLM: Request /v1/models and /v1/model/info
LiteLLM-->>Plugin: Return model data
Plugin->>DiskCache: Persist enriched models
Plugin-->>OpenCode: Register discovered models
end
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The config schema at opencode.ai/config.json defines the model cost
object as { input, output, cache_read, cache_write }; the camelCase
cacheRead/cacheWrite keys emitted previously would be silently ignored.
A warm on-disk cache is served without any network call, so discovered models keep working when the proxy is down; the old answer described pre-cache behavior.
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Actionable comments posted: 3
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Inline comments:
In `@README.md`:
- Line 71: Update the README sequence diagram so the health-check step appears
after the cache read and merge performed by config. Show warm-cache startup
bypassing the health check, while the cold-cache path continues to perform the
health check before live discoverModels.
In `@src/plugin/index.ts`:
- Around line 334-337: Scope all in-memory discovery state by cacheKey: update
refreshContexts and refreshInFlight near the cacheKey initialization to use
cacheKey for lookup and storage while preserving baseURL in the refresh context
for requests; also update injectedModelIds near its current usage to use
cacheKey, preventing providers sharing a proxy from replacing contexts or
suppressing each other’s model injection. Affected sites: src/plugin/index.ts
lines 334-337 require the refresh state key changes, and lines 515-516 require
the injectedModelIds key change.
In `@src/utils/format-model-name.ts`:
- Around line 50-53: Update the candidate-pair logic in formatModelName around
looksLikeVersionComponent so it rejects pairs whose preceding token is also a
short numeric version component, preventing numeric three-runs from collapsing;
add the exact model-1-2-3 regression case in test/format-model-name.test.ts
lines 30-33 and expect Model 1 2 3.
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.github/workflows/ci.ymlCONTRIBUTING.mdREADME.mdpackage.jsonsrc/plugin/build-model.tssrc/plugin/discover.tssrc/plugin/index.tssrc/types/index.tssrc/utils/format-model-name.tssrc/utils/model-cache.tstest/format-model-name.test.tstest/litellm-api.test.tstest/model-cache.test.tstsconfig.json
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- src/plugin/build-model.ts
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Hand-crafted SVG showing the config-hook flow: OpenCode -> plugin (discover/merge/cache) -> LiteLLM proxy -> upstream providers, plus the SWR disk cache. Dark, crisp at any size, and no diagram tooling to maintain.
Key refreshContexts, refreshInFlight, and injectedModelIds by `providerId@baseURL` instead of the bare baseURL, so two providers pointing at the same proxy (with different keys) can no longer suppress each other's model injection or reuse the wrong refresh context.
`model-1-2-3` previously rendered as "Model 1 2.3" because only the token after the pair was checked. Also refuse the merge when the token immediately before it is a short number, keeping numeric runs like `1-2-3` unmerged.
With a configured baseURL the proxy is not contacted during startup unless the cache is cold — the only 3 s fail-fast health check is the port probe during auto-detection. Move the contact point below the cache read so the diagram matches the SWR fast path.
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Aug 31, 2026
# [1.0.0](v0.11.1...v1.0.0) (2026-08-31) ### Bug Fixes * discovery improvements, dead-code removal, tests, and docs alignment ([#24](#24)) ([3041692](3041692)) ### BREAKING CHANGES * remove previously exported but dead public types (`Transport`, `TransportPolicy`, `LiteLLMOptions`, `ModelType`). No behavior change — the config-hook plugin is untouched. * test: add vitest suite and run it in CI Cover the pure logic that regresses silently: model-name formatting (including version-pair/date-stamp edge cases), model categorization, base-URL normalization, and the SWR disk cache (round-trip, per-key isolation, version mismatch, max-age expiry). Tests live in `test/` so they stay out of the published tarball. CI now runs `npm test` alongside typecheck on Node 20/22. * docs: align README and CONTRIBUTING with current behavior The README still documented the dual-provider architecture removed in 0.5.0: the `litellm-responses` sibling provider, `transport` / `responsesApiModels` / `chatApiModels` options, transport bucketing in the How-it-works diagram, and `organizationOwner` extraction — none of which the config-hook plugin does. The FAQ even pointed users at `responsesApiModels` to fix a reasoning_effort error, which silently did nothing. Rewrite those sections around the actual single-provider + SWR-cache flow, fix the naming example ("Claude 3.5 Sonnet"), document the cache and background refresh, trim shipped items from the roadmap, update the source tree, drop the redundant quickstart install step, and fix the plugin log path in CONTRIBUTING. * fix: use OpenCode's snake_case cache cost field names The config schema at opencode.ai/config.json defines the model cost object as { input, output, cache_read, cache_write }; the camelCase cacheRead/cacheWrite keys emitted previously would be silently ignored. * docs: correct offline-proxy FAQ about warm-cache behavior A warm on-disk cache is served without any network call, so discovered models keep working when the proxy is down; the old answer described pre-cache behavior. * test: restore original XDG_CACHE_HOME after cache tests * docs: add architecture banner to README Hand-crafted SVG showing the config-hook flow: OpenCode -> plugin (discover/merge/cache) -> LiteLLM proxy -> upstream providers, plus the SWR disk cache. Dark, crisp at any size, and no diagram tooling to maintain. * fix: scope in-memory discovery state by provider cache key Key refreshContexts, refreshInFlight, and injectedModelIds by `providerId@baseURL` instead of the bare baseURL, so two providers pointing at the same proxy (with different keys) can no longer suppress each other's model injection or reuse the wrong refresh context. * fix: refuse version-pair merges inside numeric runs `model-1-2-3` previously rendered as "Model 1 2.3" because only the token after the pair was checked. Also refuse the merge when the token immediately before it is a short number, keeping numeric runs like `1-2-3` unmerged. * docs: correct health-check placement in sequence diagram With a configured baseURL the proxy is not contacted during startup unless the cache is cold — the only 3 s fail-fast health check is the port probe during auto-detection. Move the contact point below the cache read so the diagram matches the SWR fast path.
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Summary
claude-opus-4-5-20251101→ "Claude Opus 4.5 20251101"),max_tokensfallback for context limits, cache read/write pricing mapped intocost.cacheRead/cacheWrite, and the SWR cache keyed perproviderId@baseURLso providers sharing a proxy no longer share a model listdiscover.ts,build-model.ts,requiresResponsesAPI,extractModelOwner, orphaned types) and the@opencode-ai/sdkdependency only it used — "zero runtime deps beyond@opencode-ai/plugin" is now actually truenpm teston Node 20/22litellm-responsesprovider,transport/responsesApiModels/chatApiModelsoptions, ororganizationOwnerextraction; the FAQ no longer points users at the inertresponsesApiModelsworkaround; How-it-works now describes the real config-hook + SWR-cache flowNote for release: the
refactor!commit carries a BREAKING CHANGE footer for the removed exported types — pre-1.0, semantic-release should bump this to 0.12.0. If squashing, keep a conventional prefix + the footer.Test plan
npm run typecheckpassesnpm test— 25/25 tests pass~/.cache/opencode-litellm/, background refresh logs on a new sessionSummary by CodeRabbit
New Features
Bug Fixes
Tests
Documentation