workflow-postmortem

Productivity

Dual-mode workflow issue logger. Use with mode=log to append mistakes during waves. Use with mode=summary at workflow end to review accumulated issues. Use when completing /build, /audit, or /ms workflows.

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How to use this skill

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Prompt to paste

I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/workflow/workflow-postmortem/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/workflow-postmortem/. Do not write files or run scripts until I approve.

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Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

Workflow Postmortem Skill

ROOT AGENT ONLY - Called by commands only, never by subagents.

Purpose: Track workflow deviations as they happen, summarize at end Output: docs/epics/in-progress/{project-folder}/post-mortem.md

Modes

Mode	When to Use	Action
`log`	Before compact at each wave	Quick append of obvious mistakes
`summary`	At workflow end	Read log, present summary to user

Quick Log Mode (mode=log)

Time budget: 30 seconds max - observation only

Steps

Observe: What wave completed? Any obvious mistakes?
Append: If issues, add to post-mortem.md (create if missing)
Continue: No report, return control for compact

File Format

# Post-Mortem Log

**Workflow:** {command} - {description}
**Started:** {YYYY-MM-DD HH:MM}

## Issues

- Wave 1: Wrong agent - used coder for analysis instead of code-explorer
- Wave 2: Skipped HITL approval on FULL path
- Wave 3: Task failed - test runner not found

Rules: One line per issue, wave number, under 80 chars, append only

Full Summary Mode (mode=summary)

Trigger: After all phases complete, BEFORE final report

Steps

Read: Load post-mortem.md (missing/empty = clean workflow)
Analyze: Count by category, identify patterns
Report: Present summary to user
Append: Add summary section to file

Output Format

Clean: Workflow Postmortem: No issues logged

Issues found:

Workflow Postmortem: 3 issues logged across 2 waves
By Category: Wrong agent (1), Skipped step (1), Failed task (1)
Details in: docs/epics/in-progress/{folder}/post-mortem.md

Issue Categories

Category	Example
Wrong agent	Used coder for analysis instead of code-explorer
Skipped step	HITL approval skipped on FULL path
Out of order	Validation before execution
Failed task	Task failed but workflow continued
Missing skill	Expected skill not invoked
Incomplete	Workflow aborted early

Example

Wave 1 (log): Append - Wave 1: Wrong agent - used coder for analysis Wave 2 (log): No issues, nothing appended Wave 3 (log): Append - Wave 3: Skipped HITL and - Wave 3: Task failed End (summary): Read file, output "3 issues across 2 waves", append summary section