feat(desktop): add MCP setup in Integrations - #491
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📝 WalkthroughWalkthroughThe PR adds MCP integration settings, local-server IPC methods, MCP launch resolution, atomic write configuration, runtime write checks, and a settings card with connection and client configuration snippets. ChangesMCP integration
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟡 Moderate · up to This change adds user-controlled MCP startup and write access, but the current implementation can briefly retain write access during startup changes and can repeatedly load the main process if the server fails to start; overridden database locations may also leave configuration out of sync. These bounded correctness and availability risks should be fixed or explicitly accepted before merging. Possibly related PRs
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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Settings → Integrations starts/stops the local HTTP path, shows URL + token, and copy-ready Claude Code / Codex snippets. Writes stay off until a second toggle, which writes mcp.json next to the DB so a running agent picks it up without recopying the snippet.
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Actionable comments posted: 5
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Inline comments:
In `@apps/desktop/src/main/handlers/localServerHandlers.ts`:
- Around line 216-227: Update the setWrites handler around writeMcpWritesConfig
so it derives the MCP configuration directory from the effective DRIPNEX_DB_PATH
override when present, while retaining dataPaths.root for the default
createDataPaths layout. Continue returning the existing success and error
response shapes.
In `@apps/desktop/src/renderer/hooks/useMcpLocalPath.ts`:
- Around line 43-56: Combine the two useEffect hooks in useMcpLocalPath into one
coordinated effect that updates write permissions with setWrites(writes) before
starting or stopping the local server. Await setWrites, and only call
localServer.start after it succeeds; leave the server stopped when the
write-configuration update fails while preserving the hydrated and API guards.
In `@apps/desktop/src/renderer/pages/settings/sections/McpCard.tsx`:
- Line 76: Update the badgeTone expression in McpCard so that after the !ready
warning case, it uses a single condition for the 'ok' state and otherwise
returns 'idle', removing the redundant enabled ? 'idle' : 'idle' branch.
- Around line 48-52: Update the MCP startup polling useEffect to use
module-scope START_POLL_MS and MAX_START_POLLS constants, poll every 750 ms, and
stop after 20 attempts or when refresh reports the server running. On
exhaustion, transition to the existing error state while preserving interval
cleanup and current readiness/enabled guards.
In `@apps/desktop/src/renderer/utils/__tests__/mcpSnippets.test.ts`:
- Around line 17-21: Add a test in the shellQuote test case to verify that a
filesystem path containing a space is wrapped in shell quotes, while preserving
the existing expectations for unquoted, non-ASCII, and apostrophe-containing
paths.
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📒 Files selected for processing (19)
apps/desktop/src/main/handlers/localServerHandlers.tsapps/desktop/src/main/services/mcpLaunch.tsapps/desktop/src/main/services/mcpWrites.tsapps/desktop/src/preload/api/index.tsapps/desktop/src/preload/api/localServer.tsapps/desktop/src/renderer/App.tsxapps/desktop/src/renderer/hooks/useMcpLocalPath.tsapps/desktop/src/renderer/pages/settings/sections/IntegrationsSection.module.cssapps/desktop/src/renderer/pages/settings/sections/IntegrationsSection.tsxapps/desktop/src/renderer/pages/settings/sections/McpCard.tsxapps/desktop/src/renderer/stores/settings/__tests__/settingsStore.test.tsapps/desktop/src/renderer/stores/settings/schema.tsapps/desktop/src/renderer/stores/settings/settingsStore.tsapps/desktop/src/renderer/utils/__tests__/mcpSnippets.test.tsapps/desktop/src/renderer/utils/mcpSnippets.tspackages/mcp-server/README.mdpackages/mcp-server/src/__tests__/writes.test.tspackages/mcp-server/src/index.tspackages/mcp-server/src/writes.ts
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Write mcp.json next to DRIPNEX_DB_PATH, persist writes before starting the local server, and bound the startup poll.
1 participant
Stacked on #490.
Why
MCP was a hidden
.mcp.json+ env flag. Agents are the product story; setup belongs in Settings like Inkdrop’s Integrations page.What
:29168)claude mcp add) and Codex (config.toml) snippetsmcp.jsonnext to the DB so a running agent picks it up without recopying the snippet.DRIPNEX_MCP_WRITES=1still wins.Out of scope
instruction:frontmatter (B.5)Summary by CodeRabbit