docs: recommend a custom connector for Cowork, revert MCP URL hardcode#6
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…dcode Root cause of the Cowork marketplace-sync failure is now confirmed: this plugin's hooks.json uses the mcp_tool hook type (required to call an MCP tool directly from a hook, which is how conversation capture works), and Cowork's server-side marketplace-sync content validator only accepts command/prompt/agent hook types. Deliberate Anthropic-side restriction (anthropics/claude-code#35653, closed NOT_PLANNED for the identical HTTP-hooks case), not something fixable in this repo. Confirmed live via claude.ai-web.log's real error payload, and by testing a hooks-free build of this exact repo (synced fine with hooks removed, failed identically with them present). Since the plugin's only differentiator over a bare MCP connector is hook-driven conversation capture, and that can't work in Cowork today, recommend a custom connector there instead (same tools, no plugin involved) until Anthropic lifts the restriction. Also reverts the MCP URL hardcode from an earlier, now-ruled-out fix attempt (git-subdir source, kept — plain hardcode, undone) — restores the CEDAR_MCP_URL local-dev override the README's "Local development" section depends on.
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Summary
hooks.jsonuses themcp_toolhook type, and Cowork's server-side marketplace-sync validator only acceptscommand/prompt/agenthook types. Confirmed via the real error inclaude.ai-web.log, matching anthropics/claude-code#35653 (closedNOT_PLANNEDfor the identical HTTP-hooks case) — and by testing a hooks-free build of this exact repo, which synced successfully..mcp.jsonURL hardcode from an earlier, now-ruled-out fix attempt (git-subdirsource change is kept — separately valid; the flat URL hardcode wasn't) — restores theCEDAR_MCP_URLlocal-dev override the README's own "Local development" section depends on.Test plan
claude plugin validate ./cedar-pluginpass