feat(vscode-ext): add VS Code extension that launches the Raven TUI

.github/workflows/ci.yml

@@ -215,3 +215,29 @@ jobs:
       - name: Audit bridge dependencies
         run: npm audit --audit-level=critical
         working-directory: bridge
+
+  vscode-ext:
+    name: VS Code extension checks
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Set up Node
+        uses: actions/setup-node@v6
+        with:
+          node-version: 22
+          cache: npm
+          cache-dependency-path: vscode-ext/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+        working-directory: vscode-ext
+
+      - name: Lint, type-check, and test
+        run: |
+          npm run lint
+          npm run type-check
+          npm test
+          npm run build
+        working-directory: vscode-ext

.pre-commit-config.yaml

@@ -59,3 +59,17 @@ repos:
         language: system
         pass_filenames: false
         files: '^bridge/src/.*\.(ts|tsx)$'
+
+      - id: eslint-vscode-ext
+        name: eslint (vscode-ext)
+        entry: bash -c '[ -d vscode-ext/node_modules ] || exit 0; cd vscode-ext && npm run lint'
+        language: system
+        pass_filenames: false
+        files: '^vscode-ext/src/.*\.(ts|tsx)$'
+
+      - id: prettier-vscode-ext
+        name: prettier (vscode-ext)
+        entry: bash -c '[ -d vscode-ext/node_modules ] || exit 0; cd vscode-ext && npx prettier --check "src/**/*.{ts,tsx}"'
+        language: system
+        pass_filenames: false
+        files: '^vscode-ext/src/.*\.(ts|tsx)$'

Makefile

@@ -1,4 +1,4 @@
-.PHONY: help install install-deps lint lint-python lint-tui lint-bridge test test-python test-tui coverage coverage-summary coverage-diff coverage-ratchet coverage-baseline-check coverage-baseline-candidate build build-tui build-bridge check-commits check-pr-title check-large-files ci clean
+.PHONY: help install install-deps lint lint-python lint-tui lint-bridge lint-vscode-ext test test-python test-tui test-vscode-ext coverage coverage-summary coverage-diff coverage-ratchet coverage-baseline-check coverage-baseline-candidate build build-tui build-bridge build-vscode-ext check-commits check-pr-title check-large-files ci clean
 
 PYTHON ?= python3
 PYTHON_VERSION ?= 3.12
@@ -19,6 +19,7 @@ help:
 	@echo "  lint-python    Ruff-check the current lint target set"
 	@echo "  lint-tui       TypeScript lint + RPC drift check"
 	@echo "  lint-bridge    Bridge package build check"
+	@echo "  lint-vscode-ext VS Code extension lint + type check"
 	@echo "  test           Run focused Python checks and TUI tests"
 	@echo "  coverage       Run the default Python suite with line and branch coverage"
 	@echo "  coverage-diff  Check changed executable lines against COVERAGE_BASE_REF"
@@ -39,8 +40,9 @@ install: install-deps
 	npm ci
 	npm ci --prefix ui-tui
 	npm ci --prefix bridge
+	npm ci --prefix vscode-ext
 
-lint: lint-python lint-tui lint-bridge
+lint: lint-python lint-tui lint-bridge lint-vscode-ext
 
 lint-python:
 	uv run --frozen --python $(PYTHON_VERSION) --extra dev ruff check $(PYTHON_LINT_TARGETS)
@@ -54,7 +56,11 @@ lint-tui:
 lint-bridge:
 	npm run build --prefix bridge
 
-test: test-python test-tui
+lint-vscode-ext:
+	npm run lint --prefix vscode-ext
+	npm run type-check --prefix vscode-ext
+
+test: test-python test-tui test-vscode-ext
 
 test-python:
 	uv run --frozen --python $(PYTHON_VERSION) --all-extras pytest -q
@@ -80,14 +86,20 @@ coverage-baseline-candidate:
 test-tui:
 	npm test --prefix ui-tui
 
-build: build-tui build-bridge
+test-vscode-ext:
+	npm test --prefix vscode-ext
+
+build: build-tui build-bridge build-vscode-ext
 
 build-tui:
 	npm run build --prefix ui-tui
 
 build-bridge:
 	npm run build --prefix bridge
 
+build-vscode-ext:
+	npm run build --prefix vscode-ext
+
 check-commits:
 	npx commitlint --from origin/main --to HEAD --config commitlint.config.cjs
 	PYTHONPATH=. uv run --frozen --python $(PYTHON_VERSION) --extra dev python scripts/check_commit_messages.py $(COMMIT_RANGE)
@@ -104,4 +116,5 @@ clean:
 	rm -rf .pytest_cache .ruff_cache .uv-cache .mypy_cache htmlcov coverage.xml coverage.json coverage-baseline-candidate.json dist build
 	rm -rf ui-tui/dist ui-tui/coverage ui-tui/.vitest-cache ui-tui/packages/hermes-ink/dist
 	rm -rf bridge/dist
+	rm -rf vscode-ext/dist
 	find . -type d -name __pycache__ -prune -exec rm -rf {} +

vscode-ext/.gitignore

@@ -0,0 +1 @@
+*.vsix

vscode-ext/.vscode/launch.json

@@ -0,0 +1,13 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Run Raven Extension",
+      "type": "extensionHost",
+      "request": "launch",
+      "args": ["--extensionDevelopmentPath=${workspaceFolder}"],
+      "outFiles": ["${workspaceFolder}/dist/**/*.js"],
+      "preLaunchTask": "npm: build"
+    }
+  ]
+}

vscode-ext/.vscode/tasks.json

@@ -0,0 +1,11 @@
+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "type": "npm",
+      "script": "build",
+      "problemMatcher": "$tsc",
+      "label": "npm: build"
+    }
+  ]
+}

vscode-ext/.vscodeignore

@@ -0,0 +1,7 @@
+src/**
+node_modules/**
+.vscode/**
+tsconfig*.json
+vitest.config.*
+eslint.config.mjs
+**/*.map

vscode-ext/LICENSE

@@ -0,0 +1,176 @@
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+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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vscode-ext/README.md

@@ -0,0 +1,45 @@
+# Raven VS Code Extension
+
+Open the [Raven](https://github.com/EverMind-AI/Raven) TUI inside the VS Code
+integrated terminal, mirroring the OpenCode extension model.
+
+## Features
+
+- Editor title button next to the active file tab plus the command palette
+  entry **Raven: Open TUI**
+- Launches `raven tui` in an editor-area tab named Raven (the terminal sits
+  in the file tab row, like the OpenCode extension); the terminal process is
+  raven itself, so arguments pass through argv with no host-shell expansion
+- Reuses the running terminal; recreates it after it closes
+- Resolves the raven executable automatically: `raven.executablePath` or
+  `RAVEN_BIN` (`~` expanded), then `which` / `where`, then a bash/zsh login
+  shell probe (for GUI-launched VS Code that lacks the shell rc PATH), then
+  `uv run raven`
+- Launches with the login shell environment merged in (bash/zsh on POSIX,
+  PowerShell on Windows), so proxy settings and API keys from your shell rc
+  apply to raven inside VS Code
+
+## Requirements
+
+- [Raven](https://github.com/EverMind-AI/Raven) installed (`raven` CLI on
+  PATH), or set the `raven.executablePath` setting
+
+## Settings
+
+- `raven.executablePath`: absolute path to the raven executable (`~` is
+  expanded). Empty by default; resolution falls back to PATH and uv.
+- `raven.extraArgs`: extra arguments passed after `raven tui`.
+
+## Development
+
+```bash
+npm install
+npm run build
+```
+
+Then press F5 in VS Code to launch the extension development host, and run
+**Raven: Open TUI** there.
+
+## License
+
+Apache-2.0

vscode-ext/eslint.config.mjs

@@ -0,0 +1,24 @@
+// ESLint flat config for the vscode-ext package. Composes the shared repo
+// base (typescript, unused-imports, perfectionist ordering) and relaxes
+// no-explicit-any for tests.
+
+import js from '@eslint/js'
+import tsPlugin from '@typescript-eslint/eslint-plugin'
+import tsParser from '@typescript-eslint/parser'
+import perfectionist from 'eslint-plugin-perfectionist'
+import unusedImports from 'eslint-plugin-unused-imports'
+
+import base from '../eslint.base.mjs'
+
+export default [
+  {
+    ignores: ['dist/**', 'node_modules/**', '**/*.config.*']
+  },
+  ...base({ js, tsPlugin, tsParser, unusedImports, perfectionist }),
+  {
+    files: ['src/__tests__/**', '**/*.test.{ts,tsx}'],
+    rules: {
+      '@typescript-eslint/no-explicit-any': 'off'
+    }
+  }
+]