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testland/flag-removal-runbook-author

Workflow-driven skill that builds the runbook for safely removing a feature flag from the codebase + the flag platform. Walks through: pre-removal verification (flag fully rolled out, no usage variance in evaluations, dependent code paths identified), the code-removal steps (delete the if-branches, simplify, restore types), the platform-side removal (archive in LaunchDarkly / Unleash / Flagsmith / GrowthBook), the verification post-removal, and the rollback plan. Use when removing a flag that has finished its mission (rollout-complete, experiment-shipped, kill-switch retired).

77

Quality

97%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

Overview
Quality
Evals
Security
Files

Quality

Content

92%

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

The runbook is a lean, highly actionable, well-sequenced workflow with strong validation and rollback feedback loops for a destructive operation. Its one weakness is progressive disclosure: all detail lives inline in a single ~219-line file with no companion bundle files to offload the platform tables and anti-pattern reference material.

Suggestions

Move the per-platform archive table (Step 5) and the anti-patterns table into a reference file under references/ (e.g. flag-platform-removal-reference.md) and link to it from the body, reducing inline length and giving the skill a genuine one-level-deep structure.

Verify the cited companion skills (feature-flag-test-matrix-reference, flag-state-coverage-builder, launchdarkly/unleash/flagsmith/growthbook-testing) actually exist in the catalog; if any are aspirational, mark them as such or remove the references.

Resolve the multi-variant Step 3 'After' block beyond a placeholder by showing one concrete inlined example, so the most complex removal case is as copy-paste-ready as the boolean case.

DimensionReasoningScore

Conciseness

The body is dense with tables, code blocks, and commands and avoids explaining concepts Claude already knows (no 'what is a feature flag' preamble), assuming competence throughout; it is not the level below because there is no unnecessary padding.

3 / 3

Actionability

Provides copy-paste-ready guidance (grep commands, TypeScript before/after, per-platform archive actions, git revert, a flag-history.md template); the single multi-variant 'After' placeholder is explicitly justified as 'inline the shipped variant's logic', which the rubric permits.

3 / 3

Workflow Clarity

Nine clearly sequenced steps with explicit validation checkpoints (Step 1 pre-removal pass criteria with 'Failure of any check = abort', Step 7 24h post-deploy checks, Step 8 rollback), giving feedback loops for a destructive operation rather than the implicit checkpoints of the level-below anchor.

3 / 3

Progressive Disclosure

Sections are well organized and cross-skill references (feature-flag-test-matrix-reference, flag-state-coverage-builder, platform *-testing skills, launchdarkly.com/docs) are one level deep and signaled, but no bundle files exist and the 219-line runbook keeps platform tables and anti-patterns fully inline, fitting 'some structure but content that should be separate is inline'.

2 / 3

Total

11

/

12

Passed

Description

100%

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 strong: it concisely states a specific multi-phase workflow and pairs it with an explicit 'Use when' trigger clause naming retired-flag states. It names concrete platforms and actions, giving it a distinct, low-conflict niche.

DimensionReasoningScore

Specificity

Enumerates multiple concrete actions ("pre-removal verification", "delete the if-branches, simplify, restore types", "archive in LaunchDarkly / Unleash / Flagsmith / GrowthBook", "verification post-removal", "rollback plan") rather than vague language, matching the 'lists multiple specific concrete actions' anchor.

3 / 3

Completeness

Explicitly states both what it does ("builds the runbook for safely removing a feature flag") and when to use it ("Use when removing a flag that has finished its mission..."), satisfying the 'clearly answers both what AND when with explicit triggers' anchor.

3 / 3

Trigger Term Quality

Natural terms a user would say appear ("removing a feature flag", "kill-switch retired", "rollout-complete", "experiment-shipped") in an explicit 'Use when' clause; coverage is good rather than just 'some relevant keywords', so it is not the level below.

3 / 3

Distinctiveness Conflict Risk

Occupies a clear niche (feature-flag removal across named platforms) with distinct triggers unlikely to fire for unrelated skills, matching the 'clear niche with distinct triggers; unlikely to conflict' anchor.

3 / 3

Total

12

/

12

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.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Reviewed

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