Add a new `gsd sessions` subcommand that lists all saved sessions for
the current directory and lets the user interactively pick one to resume.
Currently `gsd --continue` only resumes the most recent session, with no
way to access older conversations. This change adds:
- `gsd sessions` subcommand that calls SessionManager.list() to enumerate
all sessions for the current working directory
- Interactive numbered list showing date, message count, session name (if
set), and a preview of the first message
- Selection by number to resume any past session via SessionManager.open()
- Subcommand help text (`gsd sessions --help`)
- Help text entry in the main `gsd --help` output
The implementation uses only existing SessionManager APIs (list, open) -
no SDK changes required.
- Add native MCP server mode (--mode mcp): exposes GSD's tools via
Model Context Protocol over stdin/stdout for Claude Desktop, VS Code,
and other MCP-compatible clients. Uses @modelcontextprotocol/sdk.
- Add /lint skill: auto-detects ESLint, Biome, Prettier, rustfmt,
gofmt, Black, Ruff and runs with structured output
- Add 6 E2E smoke tests: --version, --help, config --help, update
--help, --list-models, and --mode text --print startup
- Fix diff-context.ts stdio type for CI compatibility
- Fix token-counter.ts tiktoken import for extensions typecheck
- Update help text and CLI to include --mode mcp
- Add /review skill: reviews staged/unstaged/commit changes for security,
performance, bugs, and quality with structured findings by severity
- Add /test skill: auto-detects test framework, generates comprehensive
tests for source files, or runs suites with failure analysis
- Add chokidar file watcher: watches ~/.gsd/agent/ for config changes
(settings.json, auth.json, models.json, extensions/) with debounced
events on an EventBus
- Add --help per subcommand: `gsd config --help` and `gsd update --help`
show subcommand-specific usage information
- 8 new file-watcher tests (start/stop, event emission, debouncing,
unrelated file filtering)
- Extract duplicated help text from loader.ts and cli.ts into shared
help-text.ts module (single source of truth)
- Convert validate-pack.sh to Node.js for Windows compatibility
- Fix dev.js using unnecessary npx for tsc (it's a devDependency,
use node_modules/.bin/tsc directly)
