/intertrace — Cross-Module Integration Gap Tracer

Given a shipped feature (bead ID), trace its data flows through the module graph and report unverified consumer edges.

Input

<intertrace_input> # </intertrace_input>

If no bead ID provided, ask: "Which bead should I trace? Provide a bead ID (e.g., iv-5muhg)."

Step 1: Resolve Bead to Changed Files

# Get bead metadata
bd show "<bead_id>"

# Find commits that reference this bead
commits=$(git log --all --oneline --grep="<bead_id>" --format="%H")

# Get changed files from those commits
changed_files=""
for commit in $commits; do
    files=$(git diff-tree --no-commit-id --name-only -r "$commit")
    changed_files="$changed_files\n$files"
done

# Deduplicate
changed_files=$(echo -e "$changed_files" | sort -u | grep -v '^$')

If no commits found for the bead ID, tell the user and offer to trace from a git diff range instead.

Display: Found N files changed across M commits for <bead_id>

Step 2: Run Tracers

Source the three tracer libraries and run them. The tracer libraries are at:

• interverse/intertrace/lib/trace-events.sh
• interverse/intertrace/lib/trace-contracts.sh
• interverse/intertrace/lib/trace-companion.sh

2a: Event Bus Tracer

Find the intertrace plugin directory (check ~/.claude/plugins/cache/interagency-marketplace/intertrace/ or the development path), source lib/trace-events.sh, and call:

source "$INTERTRACE_ROOT/lib/trace-events.sh"
event_findings=$(_trace_events_scan "$MONOREPO_ROOT" "$changed_files")

2b: Contract Verifier

source "$INTERTRACE_ROOT/lib/trace-contracts.sh"
contract_findings=$(_trace_contracts_scan "$MONOREPO_ROOT" "$changed_files")

2c: Companion Graph Verifier

source "$INTERTRACE_ROOT/lib/trace-companion.sh"
companion_findings=$(_trace_companion_scan "$MONOREPO_ROOT")

Step 3: Merge and Rank Findings

Combine all findings into a single ranked list using evidence-strength scoring:

P1 (high confidence gap):

• Contract declares consumer + zero code evidence (from trace-contracts unverified_consumers)
• Event type emitted + zero cursor registrations (from trace-events with no verified consumers)
• Companion-graph edge + zero import/call evidence (from trace-companion with verified=false)

P2 (medium confidence):

• Event type exists + consumer module exists but allowlist missing (trace-events hook_id_allowlist_missing)
• Contract consumer partially verified (some evidence but incomplete)

P3 (low confidence / docs only):

• Undeclared edges found in code but not in companion-graph.json (bonus findings)
• Weak grep matches only

Step 4: Present Report

Display the ranked findings in a clear format:

Integration Trace for <bead_id>: <bead_title>

Files traced: N (across M commits)
Tracers run: event-bus, contracts, companion-graph

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
GAPS FOUND: X

P1: <description>
    Source: <which tracer found this>
    Evidence: <what was checked and found missing>
    Impact: <why this matters>

P2: ...

P3: ...
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Then use AskUserQuestion with options:

1. "Create beads for P1 gaps" — create feature beads for high-confidence gaps only
2. "Create beads for all gaps" — create beads for every finding
3. "Save report only" — write to docs/traces/ without creating beads

Step 5: Create Beads (if chosen)

For each gap that should become a bead:

# Map evidence-strength to priority: P1→P2, P2→P3, P3→P4
# (P1 gaps are important but not urgent — they're latent integration debt, not outages)
case "$evidence_rank" in
    P1) bead_priority=2 ;;
    P2) bead_priority=3 ;;
    P3) bead_priority=4 ;;
esac

new_id=$(bd create \
    --title="Integration gap: <concise description of what's unverified>" \
    --type=bug \
    --priority="$bead_priority" \
    --description="<Full evidence paragraph. Include:
- Which tracer found this (event-bus / contracts / companion-graph)
- What was expected (declared consumer, contract entry, companion edge)
- What was missing (no code evidence, no cursor registration, no hook_id)
- Possible false negative explanation if applicable
- Trace report: docs/traces/YYYY-MM-DD-<bead_id>-trace.md>" \
    2>&1)

# Extract bead ID from output
new_bead_id=$(echo "$new_id" | grep -oP 'iv-[a-z0-9]+')

# Label as intertrace finding and link to source bead
bd update "$new_bead_id" --add-label="source:intertrace" --add-label="trace:$bead_id"

Grouping rules — don't create one bead per grep miss. Group related findings:

• Same event type with multiple missing consumers → one bead listing all consumers
• Same contract with multiple unverified consumers → one bead
• Multiple P2 findings from the same tracer limitation (e.g., grep pattern misses) → one improvement bead for the tracer itself

After creating all beads, display a summary table:

Beads created:
  iv-xxx: Integration gap: <title> [P2, source:intertrace]
  iv-yyy: Integration gap: <title> [P3, source:intertrace]

Labeled: source:intertrace, trace:<source_bead_id>

Then push beads state:

bash .beads/push.sh

Step 6: Save Report

Write findings to docs/traces/YYYY-MM-DD-<bead_id>-trace.md with the full report including all findings, evidence, and any beads created. If beads were created in Step 5, append a "Created Beads" section to the report listing each bead ID and title.