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bug-history-summarizer

Summarizes the complete lifecycle of a bug across code versions, tracking its introduction, detection, fixing attempts, and regression history. Use when users need to: (1) Understand how a bug evolved over time, (2) Trace when and how a bug was introduced, (3) Analyze fix attempts and their effectiveness, (4) Identify regression patterns, (5) Generate bug lifecycle reports for documentation or post-mortems. Takes a repository, bug identifier, and version history as input.

86

1.25x
Quality

80%

Does it follow best practices?

Impact

97%

1.25x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./skills/bug-history-summarizer/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

67%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.

The body is a clearly sequenced, actionable investigation workflow with a strong worked example and timeline template. Its main weakness is conciseness — it re-explains git fundamentals and frames steps as guiding questions.

Suggestions

Trim the 'Git Commands Reference' section to the non-obvious invocations only, or move it to a separate reference file; assume Claude already knows standard git blame/bisect/log syntax.

Convert descriptive questions under each step (e.g., 'What was the original intent of the change?') into terse imperatives to tighten the workflow.

Add a brief validation checkpoint at the end (e.g., confirm the timeline accounts for every commit touching the bug's files) to close the analytical loop.

DimensionReasoningScore

Conciseness

Mostly efficient, but the 'Git Commands Reference' section re-explains standard git commands Claude already knows and several steps pose descriptive questions ('What was the original intent?') rather than tight directives.

3 / 5

Actionability

Provides concrete executable git commands and a copy-paste-ready timeline template backed by a fully worked example, though some workflow steps are framed as guiding questions rather than commands.

4 / 5

Workflow Clarity

A clear six-step sequence (identify, trace introduction, track detection, analyze fixes, check regressions, generate report) with consistent sub-steps; validation checkpoints are absent but the task is read-only analysis rather than destructive/batch work.

4 / 5

Progressive Disclosure

Well-organized single-file skill with clearly labeled sections and no nested references, though the inlined Git Commands Reference could plausibly live in a separate reference file.

4 / 5

Total

15

/

20

Passed

Description

92%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.

The description is specific, complete, and distinctive, with concrete actions and an explicit five-part 'Use when' trigger clause in proper third-person voice. The only minor gap is keyword synonym coverage.

DimensionReasoningScore

Specificity

Lists multiple concrete actions — 'tracking its introduction, detection, fixing attempts, and regression history' and 'Generate bug lifecycle reports' — covering the full lifecycle comprehensively.

5 / 5

Completeness

Clearly states what the skill does (summarize the full bug lifecycle) and provides an explicit 'Use when users need to: (1)...(5)' clause with concrete trigger phrases.

5 / 5

Trigger Term Quality

Includes natural terms like 'bug evolved over time', 'regression patterns', 'fix attempts', and 'post-mortems', but misses common synonyms such as 'issue lifecycle' or 'defect tracking'.

4 / 5

Distinctiveness Conflict Risk

Targets a clear niche — cross-version bug lifecycle analysis with regression/post-mortem triggers — that is unlikely to overlap with or wrongly trigger other skills.

5 / 5

Total

19

/

20

Passed

Validation

100%

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

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
ArabelaTso/Skills-4-SE
Reviewed

Table of Contents

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