assessing-impact SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
assessing-impact from oaustegard/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add oaustegard/claude-skills/assessing-impact@v0.1.1Pins v0.1.1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- oaustegard/claude-skills
- Path
assessing-impact/SKILL.md- Versions recorded
- 2
- Latest version
- v0.1.1, committed Apr 26, 2026
- First version recorded
- Apr 26, 2026
- Size
- 5,506 bytes
- Repository stars
- 158
- License
- MIT
Pre-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…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Assessing Impact Cheap, ad-hoc impact analysis for a single target. Not a graph database — a focused walk over an AST cache plus a complementary text scan, clustered into a report that's easy to summarize. **Use this when** you're about to refactor / rename / delete a symbol in a repo you don't work in daily, and you want a single artifact that says: "these N files will need to change, in these M packages, with these tests likely affected." **Don't use this for** deep ongoing impact analysis on your own codebase — stand up GitNexus, SourceGraph, or your IDE's index. This skill is for the one-shot case. ## Setup ```bash uv venv /home/claude/.venv 2>/dev/null uv pip install --python /home/claude/.venv/bin/python tree-sitter export PYTHON=/home/claude/.venv/bin/python export IMPACT=/mnt/skills/user/assessing-impact/scripts/impact.py ``` The script depends on the `tree-sitting` skill — it imports `engine.py` directly. The bundled grammars live with `tree-sitting`; no separate language-pack install needed. ## Workflow ### 1. Run the report ```bash $PYTHON $IMPACT /path/to/repo SYMBOL_NAME ``` Or target a whole file: ```bash $PYTHON $IMPACT /path/to/repo path/to/module.py …
Read the whole file at its exact version.
How to install
mdr add oaustegard/claude-skills/assessing-impact@sha256:048bf626f8ac98f0The line at the top of this page pins the label v0.1.1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_qumsdjgxbswccuiu)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Apr 26, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.1.1 latest | 2026-04-26 | 8fbb9be | 5,506 B | A | view · diff |
| v0.1.0 | 2026-04-26 | 7297d38 | 5,506 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5506 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
oaustegard/claude-skills · 158 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qumsdjgxbswccuiu GET https://markdownregistry.com/api/v1/resolve?ref=oaustegard/claude-skills/assessing-impact GET https://markdownregistry.com/api/v1/blob/048bf626f8ac98f07b8dc01367e7e5cc7df448659f38570f96c4cfe111ff328a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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