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bendtherules
52b7776d5a
Recovers DeepSeek DSML tool calls that leak as assistant text: streaming middleware (AI-SDK path), SSE rewrite (native path), history sanitization, preventive directive, conditional system nudge, and a capped idle watchdog. 116 tests, synthetic golden fixtures.
111 lines
4.8 KiB
Markdown
111 lines
4.8 KiB
Markdown
# opencode-plugin-dsml-fix
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OpenCode V2 plugin that recovers DeepSeek DSML tool calls when the provider's
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parser fails and the raw markup leaks into assistant text.
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## What it does
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1. **Streaming recovery (strategy B).** Wraps the provider language model via
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`ctx.aisdk.hook("language")`. Leaked DSML blocks in `text-delta` parts become
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real AI-SDK `tool-input-*` + `tool-call` parts, and `finishReason` flips from
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`stop` to `tool-calls` — so the agent loop dispatches the intended call instead
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of stalling. Reasoning and native tool parts pass through untouched.
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2. **History sanitization.** Strips leaked DSML spans from replayed assistant text
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so the model stops imitating its own degraded output. Never synthesizes calls
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from history (no double execution).
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3. **Correction directive.** A system instruction stating the exact required envelope
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(complete outer block layer, one invoke per call, parameters inside invokes).
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4. **Auto-resume safety net (strategy A).** On session idle with unrecovered DSML
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markup, sends one short retry nudge, capped per message via plugin storage.
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## Install
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Add to `opencode.jsonc`:
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```jsonc
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{
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"plugins": ["/code/opencode-dsml-plugin"]
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}
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```
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Or publish and reference the package name. Requires OpenCode V2 (`2.0.x`).
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## Configuration
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```jsonc
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{
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"plugins": [
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{
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"package": "/code/opencode-dsml-plugin",
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"options": {
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"providers": ["opencode-go", "opencode"],
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"mode": "relaxed",
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"resume": { "enabled": true, "maxAttempts": 3 }
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}
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}
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]
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}
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```
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| Option | Default | Meaning |
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|---|---|---|
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| `providers` | `["opencode-go","opencode"]` | Provider IDs in scope. Empty disables the plugin. |
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| `mode` | `"relaxed"` | `"relaxed"` = full catalogue; `"strict"` = complete blocks only. |
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| `rescue.orphanInvoke` | mode | Recover invokes with no outer opener. |
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| `rescue.looseParameters` | mode | Tolerant re-scan past broken closers. |
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| `rescue.rawJsonBody` | mode | Bare-JSON invoke bodies. |
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| `rescue.wrappedTool` | mode | Orphan `<parameter name="X">` with complete inner params. |
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| `bufferLimit` | `65536` | Streaming hold cap in bytes. |
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| `response.sse` | `true` | Native path: rewrite SSE bytes in `http.response`. |
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| `response.aisdkStream` | `true` | AI-SDK path: wrap language model, streaming parts. |
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| `response.aisdkGenerate` | `true` | AI-SDK path: wrap language model, generate results. |
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| `request.sanitize` | `true` | Strip leaked spans from replayed history (+ one note). |
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| `request.directive` | `true` | Preventive system directive (alias: `prompt.enabled`). |
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| `request.systemNudge` | `true` | Conditional correction in system on unrecovered tail. |
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| `resume.enabled` | `true` | Idle watchdog wake (alias: `strategies.watchdog`). |
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| `resume.maxAttempts` | `3` | Cap per assistant message. |
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| `resume.channel` | `"system"` | `"system"` = minimal ping + system nudge; `"user"` = legacy full-text synthetic turn. |
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| `debug` | `false` | Log recoveries to stderr + probe file. |
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`recovery.*` and `strategies.*` remain as deprecated aliases
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(`sse`→`response.sse`, `stream`→`response.aisdkStream`,
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`generate`→`response.aisdkGenerate`, `sanitize`/`directive`/`systemNudge`→`request.*`,
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`watchdog`→`resume.enabled`). Precedence: `response`/`request` > `recovery` >
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`strategies` > legacy `resume`/`prompt` > default.
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If any layer misfires, switch that one flag off (or `mode: "strict"`) — the plugin
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degrades to the safer subset and never breaks normal inference.
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## Per-turn impact logging (`debug: true`)
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Every request turn logs one line; every response stream logs one line on close.
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Turns are identified as `sessionID/user-messageID` — OpenCode's own message
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identity — with `#n` counting physical requests (retries) within the turn:
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```
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[dsml] request ses_abc/msg_xyz sanitized=2msgs/3parts directive=yes nudge=no
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[dsml] response ses_abc/msg_xyz#1 recovered=1
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[dsml] response ses_abc/msg_xyz#2 passthrough
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[dsml] response ses_abc/msg_xyz#3 held-candidate-no-call
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```
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- `sanitized=Nmsgs/Mparts`: replayed history messages/parts stripped (+ note).
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- `directive`/`nudge`: whether system text was added this turn.
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- `recovered=N`: tool calls recovered from leaked markup this turn.
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- `passthrough`: no DSML candidate ever seen — bytes untouched.
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- `held-candidate-no-call`: something looked like markup but parsed to nothing
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(emitted verbatim). If you see this often, send the log excerpt — it's a new
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variant to catalogue.
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## Development
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```bash
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bun install
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bun test # 111 tests across grammar/parser/stream/wrapper/config/sse
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bun run check # typecheck + tests (tsc --noEmit)
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```
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- `docs/PATTERNS.md` — variant catalogue (source of truth for every regex)
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- `docs/TEST-MATRIX.md` — behaviour ↔ test map
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- `docs/STATUS.md` — handoff / project status
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- `test/fixtures.ts` — fixture builders (the repo never stores a live DSML token)
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