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refactor(acp): reduce bridge to automation protocol

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This commit is contained in:
Tianyi Cui
2026-07-24 01:40:25 +08:00
parent b06bcfd21c
commit e819a586b0
406 changed files with 3880 additions and 21325 deletions
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docs/postmortem/0001-acp-default-export-drops-inject.md
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@@ -24,7 +24,7 @@ The ACP server could not create or load a single session — the two RPCs an edi
## Root cause #1 — `export default apply` drops the plugin's `inject` (broke `session/new`)
`packages/ui/acp/src/index.ts` is a *namespace plugin*: it exports `name`, `inject`, `Config`, and `apply` as separate named exports — the same shape as every other plugin in the repo (`invariants`, `llm-deepseek`, `tool-bash`, `tui`, …). But it *also* ended with one extra line no other plugin had:
`packages/acp/acp/src/index.ts` is a *namespace plugin*: it exports `name`, `inject`, `Config`, and `apply` as separate named exports — the same shape as every other plugin in the repo (`invariants`, `llm-deepseek`, `tool-bash`, `tui`, …). But it *also* ended with one extra line no other plugin had:
```ts ignore-check
export const name = 'acp'
@@ -97,7 +97,7 @@ Both bugs share one root process gap: **no test exercised the plugin through its
## Guardrails added
- **Removed `export default apply`** (`packages/ui/acp/src/index.ts`) — the Bug #1 fix.
- **Removed `export default apply`** (`packages/acp/acp/src/index.ts`) — the Bug #1 fix.
- **`AgentLoop.resume` reads `this.ctx.get('sessionPersistence')`** (`packages/core/agent-loop/src/index.ts`) — the Bug #2 fix, with a comment explaining the shadow-walk trap.
- **No-key `session/new` e2e over real stdio** (`examples/acp-agent/tests/acp.e2e.ts`): boots the example as a subprocess through the real Loader and asserts `session/new` resolves. This fails loudly on Bug #1 with no API key. Verified it fails when `export default apply` is restored.
- **`TSX_TSCONFIG_PATH` in the e2e spawn**: the subprocess runs from a temp cwd, where tsx cannot find the repo-root tsconfig `paths` map by searching upward — so dsh-* imports silently fell back to built `lib/`. Pointing tsx at the repo tsconfig makes resolution cwd-independent and ensures the test runs *source*, not a possibly-stale build.