chore(cli): remove --mcp option from trigger dev

[carderne]

Remove the legacy --mcp and --mcp-port options from the dev command.

Run the dedicated trigger mcp command to start the Trigger.dev MCP server.

[changeset-bot]

🦋 Changeset detected

Latest commit: 08353ac

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 26 packages

Name	Type
trigger.dev	Patch
@internal/dashboard-agent	Patch
@trigger.dev/build	Patch
@trigger.dev/core	Patch
@trigger.dev/python	Patch
@trigger.dev/react-hooks	Patch
@trigger.dev/redis-worker	Patch
@trigger.dev/rsc	Patch
@trigger.dev/schema-to-json	Patch
@trigger.dev/sdk	Patch
@trigger.dev/database	Patch
@trigger.dev/otlp-importer	Patch
@trigger.dev/rbac	Patch
@trigger.dev/sso	Patch
@internal/cache	Patch
@internal/clickhouse	Patch
@internal/llm-model-catalog	Patch
@internal/redis	Patch
@internal/replication	Patch
@internal/run-engine	Patch
@internal/run-store	Patch
@internal/schedule-engine	Patch
@internal/testcontainers	Patch
@internal/tracing	Patch
@internal/tsql	Patch
@internal/sdk-compat-tests	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[coderabbitai]

Walkthrough

The dev command no longer accepts --mcp or --mcp-port. Dev sessions no longer start or stop an MCP server. The removed MCP server implementation and Polka dependencies are deleted, and a changeset directs users to the dedicated trigger mcp command.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description states the change, but it omits required template sections like issue link, checklist, testing, changelog, and screenshots.	Add the missing template sections: Closes #issue, checklist, testing steps, changelog, and screenshots or note if none.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly summarizes the main change by removing the legacy MCP option from the dev command.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/remove-dev-mcp-cli

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.

[pkg-pr-new]

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@trigger.dev/build

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trigger.dev

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@trigger.dev/core

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@trigger.dev/python

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@trigger.dev/react-hooks

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@trigger.dev/redis-worker

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@trigger.dev/rsc

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@trigger.dev/schema-to-json

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@trigger.dev/sdk

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commit: 08353ac