Multica Plugin

Platform priority: ChatGPT desktop is the primary product and acceptance target. Codex CLI compatibility is best effort. Passing MCP protocol tests does not establish that a desktop host displays composer mentions; that interaction must be verified in ChatGPT desktop.

A plugin that brings Multica into ChatGPT desktop — browse issues and their details, explicitly create conversation drafts, and use connected tools to manage tasks, comments, agents and runs.

Built on the OpenAI MCP Extensions template established by the bits-and-bolts reference plugin.

What it does

See 功能与使用场景（中文） for the current capability matrix, example workflows, and implementation limits (v0.1.6).

• Sidebar workbench (global MCP App surface): lists workspace issues in seven lanes: backlog, todo, in_progress, in_review, done, blocked, cancelled.
• Issue details first: clicking a card opens its description, properties, returned root-comment summaries, child issues and linked PRs. Returning keeps the board’s project filter, loaded pages and scroll position.
• Optional conversation: from issue details, enter a question and explicitly create a new conversation draft with task context (send: false). Browsing never sends a message or changes model context. Hosts without the message extension retain the read-only detail view.
• Workspace switching: choose a workspace above the board. The plugin saves the selection in ~/.multica/codex-plugin.json and restores it on the next visit, including after restarting Codex. The first visit uses the CLI-configured workspace. Preferences are scoped by server and credential fingerprint and do not change the CLI default in ~/.multica/config.json. If membership was removed, select an accessible workspace before loading work.
• Project list: the selector beside the workspace lists its projects. Select one to filter every status lane and subsequent pages on the server. Switching workspaces reloads the project list and resets the filter to all projects.
• Workspace agents: a collapsible area shows agent names, models and runtime bindings. Expand a card to inspect its profile; no work is dispatched. Loading failures can be retried without blocking the issue board.
• Copy issue context: copy buttons beside issue identifiers on cards and details copy a scoped snapshot with workspace/project IDs, issue ID, title, state, full description, returned comment excerpts and re-read tool arguments. Paste it into a conversation manually. Clipboard restrictions open a manual copy dialog; copying never sends a message or opens a conversation.
• Full read/write tool set exposed as multica.* MCP tools: list/get/search issues, create/update/move/comment/rerun, list projects/agents/runtimes/members, linked PRs with coarse CI status, and active or historical runs per issue.