blast-radius
From the author
Find what a change could break somewhere else before it ships, beyond the diff, and prove the one fact it's safe because of by running real code instead of writing it up. Use for 'blast radius of X', 'what could this break', or reviewing a small diff you don't trust.
Install
npx skills add backnotprop/pstack --skill blast-radius -a claude-code
Installs to .claude/skills/blast-radius/ · Each command fetches the skill straight from GitHub with the open skills CLI.
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Byte-identical to the scanned commit, with the repository’s licence and a SOURCE.txt.
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Why 90
Security100
Provenance82
Maintenance100
Licence100
Adoption55
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Similar skills
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- differential-reviewtrailofbits/skillsPerforms security-focused differential review of code changes. Adapts analysis depth to codebase size, uses git blame for context, calculates blast radius by counting callers, checks test coverage of modified code, and generates a markdown report. Use when reviewing a PR, commit, or diff for security vulnerabilities, checking whether a change re-introduces a previously fixed bug, asking what else a change could break, or finding which modified code has no test covering it.Engineering★ 7.9K
- my-cabbagestmcfarlane/team-avatarToph's my cabbages, for finding who gets hit before a change ships. The cabbage merchant's cart gets wrecked in every chase scene, because nobody looks at who is standing nearby. Look first. Use for blast-radius, /blast-radius, "blast radius of X", "what could this break", "who else uses this", reviewing a small diff you do not trust, or a brief that asserts something about existing code ("make X public", "X already handles Y") before you design against that assertion. Finds the breakage grep will not show and proves the one fact the change is safe because of by running real code.Design★ 111
- assessing-impactoaustegard/claude-skillsPre-change blast-radius report for a symbol or file. Walks tree-sitting references, augments with a plain-text scan over non-parsed files (configs, plain docs), and clusters affected sites by feature (`_FEATURES.md`) or top-level package. Use when about to refactor, rename, or delete something in a repo you don't own — "what breaks if I change `validateUser`", "who calls this", "is this safe to remove", "where is this used", "blast radius", "impact analysis". This is the CONVERGENT pre-change risk skill — for "what is this repo?" use exploring-codebases; for "where is X?" use searching-codebases.Engineering★ 157
- ripplesimota/agent-skillsAnalyzing pre-change impact across vertical (dependency chains, files) and horizontal (pattern consistency, naming) dimensions. Use to estimate blast radius before a refactor. No code.Engineering★ 96
- premortemjoetawil7/first-passRun before writing or changing code for any feature, bug fix or refactor that touches data, jobs, money, outside services or user-facing behaviour. Finds where the change will break before it is built, by walking ten named failure classes (twice, halfway, outside call, failure-is-not-empty, neighbors, endings, money, hostile user, words, scale and time) against the code, and writes the answers into the plan. Use when planning a change, when asked to "think it through", "cover the gaps", "make sure it's bug free", or before any edit to payment, publishing, deletion, auth or background-job code.Writing★ 125
- reviewBevel-Software/HexisPre-landing code review. Analyzes the diff against the base branch for SQL and data safety, race conditions, LLM trust-boundary violations, shell injection, enum completeness and other structural problems, fixes the mechanical ones and asks about the rest. Use when asked to "review this PR", "code review", "pre-landing review" or "check my diff", and when someone is about to merge.Engineering★ 121
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