What problem does it solve? Multi-agent coding setups fail in confusing ways when a binary is missing, the MCP server is unregistered, or the Agent Mail service is down. This Skill runs a single read-only diagnostic sweep across every flywheel dependency so toolchain problems surface as one clear report instead of cryptic downstream failures. ## Core Features & Use Cases - Parallel health checks: Runs 11 bounded checks covering MCP connectivity, Agent Mail liveness, br/bv/ntm/cm binaries, node version, git status, dist drift, orphaned worktrees, and checkpoint validity, each with per-check timeouts and a global sweep budget. - Inline remediation: For each failing check, prompts the user with dry-run or execute options via the flywheel_remediate tool, including service-aware Agent Mail repair and canonical CLI installers. - CI and onboarding gates: Use it before starting a new session, after cleanup, or as a CI gate so toolchain regressions appear as a red line rather than a confusing test failure. - Use Case: Before running /start on a fresh clone, invoke the doctor to confirm every binary resolves and MCP is registered; if dist drift is detected, apply the automated fix and re-verify in one pass. ## Quick Start Ask the agent to run flywheel doctor on the current repository and fix any failing checks it finds.