d02e9f1bd6
Move the 18 flat packages/<name> packages into role-grouped dirs: core/, llm/, bash/, session-persistence/, ui/, support/. Group dirs are pure containers; each package keeps its @deepseek-ai/dsh-* name. Collapse the per-package tsconfig paths maps (base + typecheck) into one @deepseek-ai/dsh-* wildcard with a candidate per group, and derive the publint list from the hierarchy. Update all depth-coupled globs/configs (workspace, tsdown, vitest, eslint, knip, tsconfig includes/refs, per-package tsconfigs, generators, doc-script scopes, type-equiv manifest) and the cross-package/script relative imports in tests. Fix doc-typecheck's workspacePaths() to parse tsconfig JSONC via the TypeScript API instead of a regex comment-strip, which corrupted the new wildcard `/*/` path candidates. WIP: doc cross-links and package/RFC docs still to update.
37 lines
3.0 KiB
Markdown
37 lines
3.0 KiB
Markdown
# @deepseek-ai/dsh-llm-replay
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A replay LLM plugin for keyless snapshot tests. It installs a single `llm/stream` waterfall listener that short-circuits the waterfall (never calls `next()`) and yields model streams reconstructed from a recorded **session JSONL** fixture — so a test can boot the real agent against a fixed model transcript with no API key.
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Its consumer is the ACP snapshot harness in `examples/acp-agent`, which loads this plugin (via `cordis.snapshot.yml`) in place of a real LLM adapter. The package exists so its derive/parse/replay logic falls under the per-file 100% coverage gate on `packages/*/src` (the same logic, while it lived under `examples/`, was outside the gate).
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## How the fixture works
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The fixture IS the persisted session log (`<scenario>/session.jsonl`). Its `assistant/chunk` events carry every `StreamChunk`, so grouping them by `(turn, step)` reconstructs each `stream()` call's chunk sequence (one model call per loop step). Recording is therefore "run the real agent once and harvest the `.jsonl`", done by the snapshot harness — this plugin does not record.
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Two failure modes are not reconstructable from `assistant/chunk` alone — a pure throw before any chunk (e.g. an HTTP 401, where the log holds only a `turn/end {error}` and no chunks) and a cancel/hang (timing, not chunk content). A scenario that needs those supplies an optional sidecar (`<scenario>/replay.override.json`: a `ReplayEntry[]`) that REPLACES the derived script.
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## Config
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| Key | Type | Default | Notes |
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|---|---|---|---|
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| `file` | string | `$DSH_SNAPSHOT_FILE` | Path to the per-scenario `session.jsonl` fixture. Required (config or env). |
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| `overrideFile` | string | `$DSH_SNAPSHOT_OVERRIDE` | Optional path to a `ReplayEntry[]` sidecar that replaces the derived script. |
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```yaml
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- id: llm-replay
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name: '@deepseek-ai/dsh-llm-replay'
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# file/overrideFile default to $DSH_SNAPSHOT_FILE / $DSH_SNAPSHOT_OVERRIDE,
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# set by the snapshot harness per scenario.
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```
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## Exports
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- `installLlmReplay(ctx, config)` — install the `llm/stream` listener; returns the disposer (HMR safety). Use this in tests to drive replay without the Loader or env vars.
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- `loadReplayScript(config)` — resolve the `ReplayEntry[]` for a scenario (sidecar override if present, else derived from the JSONL; fail-loud if the fixture is missing).
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- `deriveReplayScript(events)` / `parseSessionLog(text)` — the pure helpers that turn a recorded session log into a script. A derived group must end in a `finish` chunk; a group without one is the fingerprint of a thrown `stream()` and must instead be expressed via an override sidecar.
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- Types `ReplayEntry` / `ReplayConfig` / `Config`.
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## Plugin export shape
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Named `name` / `inject` / `Config` / `apply`, with **no default export**: the cordis Loader's `unwrapExports` does `exports.default ?? exports`, so a stray default would collapse the module to the bare function and drop the `inject` namespace (see [docs/postmortem/0001](../../docs/postmortem/0001-acp-default-export-drops-inject.md)).
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