Cannot change the limits of a model #53005

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1. github-actions

   assigned

   neriousy

   on Oct 3, 2026
2. github-actions commented on Oct 3, 2026

   

   github-actionsBot

   on Oct 3, 2026 – with GitHub Actions

   Contributor

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   This issue might be a duplicate of existing issues. Please check:

   • providers: config-declared providers never materialize into registry (v2.0.15) #51285: Config-declared providers are not materialized in the provider registry.
   • providers: custom provider silently skipped when model capabilities omit tools #49912: Custom providers are silently skipped during config normalization (specifically when model capabilities omit tools).
3. litoj commented on Oct 3, 2026

   

   litoj

   on Oct 3, 2026

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   apparently it works only if all input, context and output are defined
4. opencodejr commented on Oct 27, 2026

   

   opencodejrBot

   on Oct 27, 2026

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   Thanks for the clear report. I could reproduce this on 2.0.22, and it still happens on the latest dev (45b53fe6f).

   What I saw, using your legacy-style config (provider / npm / options):

   • If a model's limit sets only context (or is {}), the whole provider is dropped with no error. opencode debug config shows the provider list as empty, and the provider's models are missing from /models.
   • The same provider without limit is listed normally.
   • In my tests, a limit with both context and output (e.g. "limit": { "context": 1000000, "output": 8192 }) kept the provider and applied the limit. Until this is fixed, setting both may work around it for you.

   The recording and script below load three otherwise identical providers. Only the one whose model has a context-only limit is missing from the model list.

   You mentioned that a complete limits table also made the provider disappear, which I couldn't reproduce. While testing, I noticed the background service sometimes kept the previous config after I edited the file, until I ran opencode service stop. That may be what you saw. If a full context + output limit still hides the provider after restarting the service, please post that exact config here.

   Related: the open PR #53129 targets this issue.

   recording.mp4

   

   Reproduction script (drive.ts)

   // Repro for anomalyco/opencode#53005: a legacy-format custom provider whose model
   // sets only `limit.context` disappears from the model list. The same provider
   // without `limit` (or with both context and output) is listed.
   import { Effect } from "effect"
   import { OpenCodeDriver } from "opencode-drive"
   
   const provider = (name: string, model: string, limit?: object) => ({
     npm: "@ai-sdk/openai-compatible",
     name,
     options: { baseURL: "https://llm.ai.e-infra.cz/v1", apiKey: "dummy" },
     models: { thinker: { name: model, ...(limit ? { limit } : {}) } },
   })
   
   export default OpenCodeDriver.use(
     {
       ...(process.env.OC_DEV ? { opencode: { dev: process.env.OC_DEV } } : {}),
       tui: { recording: true, keypressOverlay: true },
       setup: ({ config }: any) =>
         Effect.sync(() => {
           config.provider = {
             "no-limit": provider("NoLimit Provider", "thinker-no-limit"),
             "full-limit": provider("FullLimit Provider", "thinker-full-limit", { context: 1000000, output: 8192 }),
             "e-infra": provider("E-Infra", "thinker-context-only-limit", { context: 1000000 }),
           }
         }),
     } as any,
     ({ ui }) =>
       Effect.gen(function* () {
         yield* Effect.sleep("2 seconds")
         yield* ui.submit("/models")
         yield* Effect.sleep("1 second")
         yield* ui.type("thinker")
         yield* Effect.sleep("2 seconds")
         yield* ui.screenshot("models-thinker")
         const frame: any = yield* ui.capture()
         const text = typeof frame === "string" ? frame : JSON.stringify(frame)
         yield* Effect.log(`NoLimit listed: ${text.includes("thinker-no-limit")}`)
         yield* Effect.log(`FullLimit listed: ${text.includes("thinker-full-limit")}`)
         yield* Effect.log(`E-Infra (context-only limit) listed: ${text.includes("thinker-context-only-limit")}`)
         yield* Effect.sleep("1 second")
       }),
   )

   Run it with opencode-drive: opencode-drive run ./drive.ts. It drives opencode from your PATH; set OC_DEV to the path of an OpenCode checkout to run that from source instead.
5. opencodejr

   added

   reproduced

   on Oct 27, 2026
6. Tarquinen

   closed this as completedin #62240on Nov 6, 2026