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postmortem-writing

Write effective blameless postmortems with root cause analysis, timelines, and action items. Use when conducting incident reviews, writing postmortem documents, or improving incident response processes.

65

Quality

82%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

71%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

Highly actionable with excellent templates and facilitation guidance, but the monolithic single-file structure and repeated/overlapping sections (5 Whys twice, lessons duplicated) reduce token efficiency and progressive disclosure.

Suggestions

Move the three full templates into separate reference files (e.g. references/standard-postmortem-template.md) and keep SKILL.md as a concise overview with one-level-deep links.

Remove the generic 'Instructions' boilerplate ('Clarify goals...', 'Apply relevant best practices...') and the duplicated 5 Whys content between Template 1 and Template 2.

Consolidate the per-section 'What Worked / What Didn't Work' findings so Detection, Response, and Lessons Learned do not restate the same points.

DimensionReasoningScore

Conciseness

Mostly concrete template material, but the ~385-line body repeats findings across Detection/Response/Lessons Learned sections, duplicates 5 Whys in Template 1 and Template 2, and opens with generic filler ('Clarify goals, constraints, and required inputs').

3 / 5

Actionability

Provides copy-paste-ready templates with specific worked examples (exact timeline times, ticket IDs like ENG-1234, owners, due dates), a minute-by-minute facilitation agenda, and concrete action-item/anti-pattern tables.

5 / 5

Workflow Clarity

The Quick Start timeline (Day 0 → Quarterly) and 60-minute meeting agenda give a clear sequence with implicit status checkpoints (Draft | In Review | Final), though explicit validation steps for the writing process itself are missing.

4 / 5

Progressive Disclosure

No bundle files exist and all three full templates (especially the large Standard Postmortem) are inlined in a single monolithic file; section headers provide structure, but content that belongs in separate reference files is not split out.

3 / 5

Total

15

/

20

Passed

Description

87%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, well-structured description that clearly states capabilities and trigger conditions in third person. Minor synonym/variant coverage gaps keep trigger term quality and specificity just below full marks.

DimensionReasoningScore

Specificity

Names the domain and lists several concrete actions ('root cause analysis, timelines, and action items'), but stops short of comprehensive coverage of postmortem-related tasks like facilitating meetings or pattern analysis.

4 / 5

Completeness

Explicitly answers both 'what' (write effective blameless postmortems with RCA, timelines, action items) and 'when' ('Use when conducting incident reviews, writing postmortem documents, or improving incident response processes') with concrete trigger phrases.

5 / 5

Trigger Term Quality

Includes natural phrases users would say ('incident reviews', 'writing postmortem documents', 'incident response processes'), but lacks synonym variants and shorthand like 'RCA' or 'post-incident review'.

4 / 5

Distinctiveness Conflict Risk

Occupies a clear niche (blameless postmortems / incident response) with distinct triggers and minimal overlap risk with unrelated skills.

5 / 5

Total

18

/

20

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

relative_links

Relative link issues: 2 missing

Warning

Total

15

/

16

Passed

Repository

rmyndharis/antigravity-skills

Path

skills/postmortem-writing/SKILL.md

Reviewed

Table of Contents

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