learn

# Learn — Pattern Discovery & Guardrails Update Scan the codebase to discover recurring coding patterns and update `draft/guardrails.md` with learned conventions and anti-patterns. This improves future quality command accuracy by reducing false positives and catching known-bad patterns. ## MANDATORY GRAPH LOOKUP (read before pattern scanning) First resolve the bundled helpers: ```bash # Locate Draft's bundled helpers (cwd is the user's project; ${CLAUDE_PLUGIN_ROOT} # is not exported into skill Bash). See core/shared/tool-resolver.md. DRAFT_TOOLS="${DRAFT_PLUGIN_ROOT:-$(cat ~/.cache/draft/plugin-root 2>/dev/null)}/scripts/tools" [ -d "$DRAFT_TOOLS" ] || DRAFT_TOOLS="$(ls -d ~/.claude/plugins/cache/*/draft/*/scripts/tools 2>/dev/null | sort -V | tail -1)" [ -d "$DRAFT_TOOLS" ] || DRAFT_TOOLS="$(ls -d ~/.claude/plugins/marketplaces/*draft*/scripts/tools 2>/dev/null | tail -1)" [ -d "$DRAFT_TOOLS" ] || DRAFT_TOOLS="$PWD/scripts/tools" ``` When `draft/graph/schema.yaml` exists, this skill **must** follow the graph-first lookup contract in [core/shared/graph-query.md](../../core/shared/graph-query.md) §Mandatory Lookup Contract. Use the graph to: 1. Enumerate a module's symbols/files via `"$DRAFT_TOOLS/graph-callers.sh"`/`"$DRAFT_TOOLS/graph-impact.sh"` and `"$DRAFT_TOOLS/graph-arch.sh" --repo .` (preferred over `find`). 2. Prioritize hotspots via `"$DRAFT_TOOLS/hotspot-rank.sh" --repo .` — patterns in high-fanIn files are more impactful when learned. 3. For TS/Python/Go/C/C...