feat(cli): arctl run --inspector + working --watch for MCP#499
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Signed-off-by: Kristy Tian <kristy.tian@solo.io>
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Pull request overview
Adds an --inspector flag to arctl run to optionally launch the MCP Inspector alongside an MCP server run, with strict flag/kind validation and test coverage.
Changes:
- Added
--inspectorflag toarctl run, including symmetric validation with--no-chatbased on project kind. - Implemented a small
internal/cli/declarative/inspectorhelper to spawnnpx @modelcontextprotocol/inspector. - Added unit tests for the new validation behavior and dry-run narration.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.
| File | Description |
|---|---|
| internal/cli/declarative/run.go | Adds the --inspector flag, validates flag applicability by framework type, and launches/kills the Inspector subprocess. |
| internal/cli/declarative/run_test.go | Adds tests for --inspector/--no-chat kind validation and dry-run Inspector URL narration. |
| internal/cli/declarative/inspector/inspector.go | Introduces a wrapper to start MCP Inspector via npx with test-injectable process creation/start. |
| internal/cli/declarative/inspector/inspector_test.go | Tests argv construction and error propagation for Inspector launch. |
xytian315
changed the title
--inspector flag to arctl run
josh-pritchard
approved these changes
May 21, 2026
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Description
Makes
arctl run --watchwork for MCP servers, composes with--inspector, and adds a signpost on agent--watch.--inspectorlaunches MCP Inspector against the local MCP; retries until ready. Errors on agent projects.--watchfor MCP: fixes<no value>template render; names the container so restartsdocker rm -fcleanly instead of leaking ports.--watch --inspectorcomposes — Inspector reconnects across container restarts.arctl run <agent> --watchprints where the agent lives and how to open chat in another terminal (suppressed with--no-chat).cmd.Context()plumbed through so Ctrl-C cancels the watch loop cleanly.Change Type
/kind feature
/kind fix
Changelog
Additional Notes