postmortem

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• SKILL.md

SKILL.md (first lines)

# postmortem — Campaign Postmortem Generator

## Identity

postmortem reads the artifacts a campaign produced and generates a structured
postmortem. It doesn't require the user to remember what happened. The data
is already in the campaign file, telemetry, and git history.

## When to Use

- After any Archon campaign completes (Archon should suggest it)
- After a difficult debugging session
- When the user says "what just happened" or "what broke"
- When the router directs "postmortem", "retro", "what broke", "what happened"

## Inputs

One of:
1. A campaign file path (.citadel/campaigns/*.md)
2. A time range ("last session", "today", "this week")
3. Nothing (reads the most recent completed campaign)

## Protocol

### Step 1: GATHER

Collect data from all available sources:

**From the campaign file (if it exists):**
- Direction vs what was actually built (scope drift?)
- Phase completion timeline (which phases needed rework?)
- Decision log entries (what architectural choices were made?)
- Review queue items (what needed human eyes?)
- Circuit breaker activations (what hit the limit?)
- Feature ledger (what shipped?)

**From telemetry (.citadel/telemetry/):**
- hook-timing.jsonl: which hooks fired most, any patterns
- hook-errors.log: what was blocked, what failed, what had parse errors
- Circuit breaker trips
- Quality gate violations

**From git history:**
- Commits during the campaign period
- Files changed (which areas got the most churn?)
- Any reverts (what was undone?)
- Commit message patterns (fix: commits indicate bugs found)

**From the session itself (if no campaign):**
- Recent tool calls and their outcomes
- Files edited and errors encountered

### Step 2: ANALYZE

Identify patterns across the data:

1. **What broke:** List every failure, error, or unexpected outcome.
   For each: what happened, what caught it (hook/gate/human/nothing),
   what it cost (time, rework, tokens).

2. **What the safety systems caught:** Circuit breaker activations,
   quality gate blocks, anti-pattern warnings, typecheck failures.
   This is the "invisible value" section — problems prevented.

3. **What drifted:** Compare the campaign direction to what was built.
   Did scope expand? Did phases get skipped or reordered? Did the
   architecture change mid-build?

4. **What patterns emerged:** Recurring error types, files that kept
   needing fixes, phases that took longest, common anti-patterns.

### Step 3: PRODUCE

Write to `.citadel/postmortems/postmortem-{slug}-{date}.md`:

```markdown
# Postmortem: {Campaign Name or Session Description}

> Date: {ISO date}
> Campaign: {path to campaign file, or "ad-hoc session"}
> Duration: {time from first to last commit}
> Outcome: {completed | partial | parked}

## Summary
{2-3 sentences: what was attempted, what happened, what the result was}

## What Broke
{Numbered list. For each:}
### {N}. {Short description}
- **What happened:** {the failure}
- **Caught by:** {hook name / quality gate / human / nothing}
- **Cost:** {rework time, files affected, phases repeated}
- **Fix:** {what resolved it}
- **Infrastructure created:** {new hook rule, new anti-pattern, new end condition — or "none needed"}

## What Safety Systems Caught
{Things that WOULD have been problems without the hooks/gates}
| System | What It Caught | Times | Impact Prevented |
|--------|---------------|-------|-----------------|
| {hook/gate name} | {description} | {count} | {what would have happened} |

## Scope Analysis
- **Planned:** {what the campaign direction said}
- **Built:** {what the feature ledger shows}
- **Drift:** {none | minor | significant — with specifics}

## Patterns
{Recurring themes worth watching:}
- {pattern 1}
- {pattern 2}

## Recommendations
{Concrete next actions:}
1. {recommendation — e.g., "Add anti-pattern rule for X"}
2. {recommendation — e.g., "Phase Y needs tighter end conditions"}

## Numbers
| Metric | Value |
|--------|-------|

From special-place-administrator/citadel_codex, MIT.

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