| name | haiku-version |
| description | Show the running H·AI·K·U MCP binary version, plugin version, and whether the engine is the dev source build or the compiled bundle |
Version
Call the haiku_version_info tool to retrieve version information.
Display:
- MCP version — the version baked into the running binary at build time (or
dev when the binary wasn't built)
- Plugin version — the version from
plugin.json on disk
- Build kind — whether the running engine is the compiled production bundle (
plugin/bin/haiku.mjs) or a dev process loading TypeScript directly via bun/tsx. The two can disagree with the plugin version if the dev tree has uncommitted or unbuilt changes
- Runtime —
node <version> (or bun <version> etc.) — useful when triaging "why does my behavior differ from the docs"
- Entry — the actual file the runtime launched with (
process.argv[1]). For prod this points at the bundle; for dev it points at the source file
If a pending update is reported, mention it to the user.
When build_kind is dev, also call out that any working-tree edits to packages/haiku/src/** are live — no rebuild needed. For prod, a rebuild (bun run --cwd packages/haiku build) is required for source edits to take effect.
