openpencil/apps/web/server/api
Fini 4731a73b79 fix(ai): dispatcher short-circuits + prompt names embedded coverage
elements.md's 42-tool catalog is authored for external MCP clients
that talk to pen-mcp's full handler set via stdio/HTTP. The embedded
orchestrator (this runtime) can only execute tools with BOTH a
client-side shim (element-tool-shims) AND a matching Nitro
SERVER_BUILDERS entry — currently 10 of the 42. Prior code
advertised the full catalog to the AI and promised HTTP fallback
coverage without restriction, so 32/42 tool names would silently
route through to a 404 → surfaced-error path.

Fix:
- Export SUPPORTED_EMBEDDED_ELEMENT_TOOLS from the shim module as
  the canonical covered list. Shim + Nitro registries stay in sync
  by convention; extending coverage requires updating both.
- Dispatcher short-circuits on tool names not in the list — no
  wasted HTTP roundtrip, diagnostic carries the covered-list so the
  caller can route to batch_design.
- ELEMENT_TOOL_OUTPUT_FORMAT in orchestrator-sub-agent names the
  available subset inline so the AI knows which add_*_v0 it can
  emit and when to fall back to batch_design.
- JSDoc in dispatcher, shim module, and exec-tool endpoint updated
  to reflect actual behavior (insertStreamingNode path, embedded-
  vs-external coverage asymmetry) instead of the stale "HTTP
  fallback covers everything" story.
- New test locks the short-circuit: calling an uncovered tool name
  (e.g. add_divider_v0) must not attempt fetch.

Real follow-up work is still to extract the remaining ~32 pen-mcp
tool tree-build functions into pen-core, shim them, and extend
SERVER_BUILDERS. Until then, the routes advertised to the AI
actually match what the runtime can execute.
2026-04-21 22:14:25 +08:00
..
ai V0.7.3 (#111) 2026-04-15 22:19:12 +08:00
mcp fix(ai): dispatcher short-circuits + prompt names embedded coverage 2026-04-21 22:14:25 +08:00
local-asset.get.ts V0.7.0 (#95) 2026-04-11 23:25:13 +08:00