feat: node.update-props + project.list fix + MCP feature reference#157
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…oject.list fix - NODE-UPDATE-PROPS.md: spec for TplComponent instance prop updates with dynamic expression bindings, slot support, variant-specific props, and prop deletion - MCP-FEATURE-REFERENCE.md: spec for comprehensive developer reference covering all 8 tools and 104 actions - IMPLEMENTATION_PLAN.md: plan covering update-props feature, project.list JSON encoding bug fix, and feature reference doc
…wiring Add the ability to set/update prop values on TplComponent instances via MCP, closing the #1 feature gap blocking data-driven component wiring. Supports scalar props, dynamic expressions ($expr / {{expr}}), boolean/number literals, slot content (PlasmicElement), prop deletion (null), variant targeting, and fail-fast validation with merge semantics. Uses setTplComponentArg from TplMgr — the same mutation path Studio uses — to ensure full data model fidelity. This brings the MCP to 104 actions across 8 domain tools.
Add self-contained developer feature reference covering all 8 STRAP domain tools and 104 actions. Fix stale action counts in README.md (103→104, node 15→16 with update-props) and index.ts (99→104).
…yParams
The server's parseQueryParams (util.ts:189) runs JSON.parse() on every
query param value. The MCP client was sending ?query=all (bare string)
which causes JSON.parse("all") to throw SyntaxError → HTTP 500. The
official Plasmic browser client (client/api.ts:67) JSON.stringify()s all
values before appending them as query params.
Changed api-client.ts to send ?query=%22all%22 (URL-encoded "all" with
JSON quotes), matching the server's expected encoding.
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Summary
node.update-props: New action on the node tool to set/update prop values on TplComponent instances (component instances already placed in the tree). Supports scalar values, dynamic expression bindings ($ctx.params.orderId,{{$queries.cart.data.id}}), boolean/number literals, slot content (PlasmicElement), prop deletion (null), and variant targeting. ReusessetTplComponentArgfrom WAB TplMgr to mirror Studio behavior exactly. 13 test cases.project.listfix: The MCP sent?query=allbut the server'sparseQueryParamsrunsJSON.parse()on every query param value, expecting?query="all"(JSON-encoded). Fixed to match the official Plasmic client behavior.FEATURE_REFERENCE.md: Self-contained developer reference covering all 8 MCP tools and 104 actions, with concept explanations for each feature area.Test plan
cd packages/plasmic-mcp && npm run test:unit)node.update-props: 13 test cases covering scalar props, dynamic bindings ($expr, {{expr}}), boolean/number, prop deletion, slot rejection, non-slot rejection, TplTag rejection, invalid prop name, empty props, multi-prop merge, fail-fast atomicity, variant targetingproject.list: URL assertion updated to verify JSON-encoded query param (%22all%22)project.listagainst live Plasmic server no longer returns HTTP 500