# Detect Drift

> Use when a completing delivery run must check the knowledge base for drift its changes introduced or exposed: manifests, maps, and changed docs compared against reality, producing a drift report and a canonical-fact sync check. This is the detect_drift action of the knowledge-maintenance stretch — one Agent-tool dispatch with subagent_type documentation-steward — the finder, distinct from repair-manifest-and-links (the fixer that consumes its report).

- Skill: `bhangeef16/detect-drift` (Agent Skill)
- Install (CLI): `npx skillmds@latest add bhangeef16/detect-drift`
- Raw SKILL.md: https://api.skillmd.com/api/skills/bhangeef16/detect-drift/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: BhangeeF16 (https://skillmd.com/u/bhangeef16)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/bhangeef16/detect-drift

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# Detect Drift

Find where recorded knowledge and reality disagree. This action reports drift; it deliberately fixes nothing, so the repair is itself reviewable.

## Dispatch

One synchronous `Agent`-tool call, `subagent_type: documentation-steward`.

## Required inputs

- The manifests.
- The maps/indexes.
- The changed docs from this run.

## Required outputs (all mandatory)

- A drift report — every stale path, dangling link, out-of-date manifest entry, and duplicated or contradicted fact found.
- A canonical-fact sync check — for each fact the run touched, confirmation its canonical owner says what reality now says.

## Rules — harvested documentation discipline

- A fact whose canonical owner cannot be determined is a stop condition — report it as a question, never resolve it by picking or inventing an owner.

## Result

Report each required output produced (with its location), the result (pass / pass_with_risks / blocked / failure), and blocking questions as an explicit list (empty list stated explicitly).