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fix(lsp): align operations and harden lifecycle

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Tianyi Cui
2026-07-21 13:29:40 +08:00
parent 2a55f6b684
commit 2fd995bf3c
46 changed files with 680 additions and 366 deletions
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packages/lsp/README.md
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@@ -8,6 +8,6 @@ The language-server capability seam: an abstract LSP interface, a generic stdio
| `lsp-local/` | Generic multi-server local backend (spawn, JSON-RPC, transient-open queries) | (registers providers on `ctx.lsp`) |
| `tool-lsp/` | Model-facing `lsp` tool (four operations, one-based UTF-16 cursor coordinates) | (registers on `ctx.tools`) |
The interface lives at `lsp/lsp/`. The seam exposes exactly four semantic operations — `definition`, `references`, `implementation`, `hover` — and no generic JSON-RPC escape hatch, so a provider swap does not change how the model asks for navigation and no protocol payload or unreviewed mutation reaches the model contract. Providers register **capabilities**, not tools; `tool-lsp` is the only owner of the model-facing name, schema, prompt guidance, and presentation.
The interface lives at `lsp/lsp/`. The seam exposes exactly four semantic operations — `goToDefinition`, `findReferences`, `goToImplementation`, `hover` — and no generic JSON-RPC escape hatch, so a provider swap does not change how the model asks for navigation and no protocol payload or unreviewed mutation reaches the model contract. Providers register **capabilities**, not tools; `tool-lsp` is the only owner of the model-facing name, schema, prompt guidance, and presentation.
See the [LSP capability seam Agent Note](../../.agents/notes/implemented/architecture/2026-07-15-lsp-capability-seam.md) for the design rationale, including why documents open transiently per query, why the local host reads through Node APIs rather than `ctx.fs`, and why extension ownership is exclusive within one runtime.