impact-analysis

impact-analysis is a skill for Claude Code, Codex from 0xsarwagya/ontoly. It costs 37 tokens per session (538 once invoked), scanned A, original, AGPL-3.0.

A change-impact analysis tool that traces dependencies between parts of a software system. It follows both what a component depends on and what depends on that component.

In plain words
What is it for?
Use it to assess the impact of changing or deleting a symbol, service, route, package, or repository node.
Why use it?
It helps reveal which code or services could be affected before a change or removal is made. This reduces the chance of overlooking downstream breakage.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to assess the impact of changing or deleting a symbol, service, route, package, or repository node.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/0xsarwagya/ontoly/impact-analysis
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add 0xsarwagya/ontoly --skill impact-analysis
Clone the repo
git clone --depth 1 https://github.com/0xsarwagya/ontoly

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for impact-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/0xsarwagya/ontoly/impact-analysis/github.svg)](https://agentmods.dev/skills/0xsarwagya/ontoly/impact-analysis)
Your own site
<a href="https://agentmods.dev/skills/0xsarwagya/ontoly/impact-analysis"><img src="https://agentmods.dev/badge/skills/0xsarwagya/ontoly/impact-analysis/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for impact-analysis

Your own site · 80×15
<a href="https://agentmods.dev/skills/0xsarwagya/ontoly/impact-analysis"><img src="https://agentmods.dev/badge/skills/0xsarwagya/ontoly/impact-analysis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 538 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00037 $0.00538
Opus 5 $0.00018 $0.00269
Sonnet 5 $0.00007 $0.00108
Haiku 4.5 $0.00004 $0.00054

Measured 8d ago against content hash b91a2be0010d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

impact-analysis scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/impact-analysis/SKILL.md · 59 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 59 lines · 37 tokens per session scan A b91a2be0010d

Subscribe to this mod's changes

impact-analysis is a skill published in the GitHub repository 0xsarwagya/ontoly (1 stars, last pushed 27d ago), licensed AGPL-3.0. It adds 37 tokens to every session and 538 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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