frontend-mcp

PyPI alias for frontend-perception-engine.

Deterministic browser runtime + fast code resolvers for AI coding agents.

Install

pip install --upgrade frontend-mcp
frontend-mcp-install    # optional: prints Cursor config
frontend-mcp

Or:

uvx --from frontend-mcp frontend-mcp-install
uvx --from frontend-mcp frontend-mcp

Agent quick start

Read perception://agent-guide at session start
perception_health → perception_session_start
perception_navigate_and_observe → save scan_id
Code ↔ UI: perception://resolver-guide → perception_resolve_route (not perception_code_context)
Edit files → perception_verify (never skip)

Key MCP resources

URI	Use
`perception://agent-guide`	Main playbooks
`perception://resolver-guide`	`perception_resolve_*` tools
`perception://seo-guide`	`perception_seo_audit_start` + poll

Local development

Point Cursor at your checkout:

{
  "mcpServers": {
    "frontend-mcp": {
      "command": "python",
      "args": ["-m", "navigation.mcp"],
      "env": {
        "PYTHONPATH": "/path/to/frontend-perception-engine/src",
        "FRONTEND_PERCEPTION_DEFAULT_REPO_ROOT": "/path/to/frontend-perception-engine/sandbox"
      }
    }
  }
}

Restart MCP after changes. Run smoke: python scripts/phase3_mcp_smoke.py

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