trace

trace is a skill for Claude Code, Codex from scalarian/oh-my-codex. It costs 22 tokens per session (195 once invoked), scanned A, original, MIT.

A way to map the real path through software before making a risky change. It identifies where execution starts, how data moves, what side effects occur, and which other parts may be affected.

In plain words
What is it for?
Use it to inspect entry points, data flow, side effects, risky branches, missing safeguards, affected files, and the safest boundary for the next edit.
Why use it?
It reduces the chance of editing the wrong place or overlooking consequences such as database writes, network requests, screen changes, or background work.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to inspect entry points, data flow, side effects, risky branches, missing safeguards, affected files, and the safest boundary for the next edit.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/scalarian/oh-my-codex/trace
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 scalarian/oh-my-codex --skill trace
Clone the repo
git clone --depth 1 https://github.com/scalarian/oh-my-codex

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 trace

README.md
[![agentmods](https://agentmods.dev/badge/skills/scalarian/oh-my-codex/trace/github.svg)](https://agentmods.dev/skills/scalarian/oh-my-codex/trace)
Your own site
<a href="https://agentmods.dev/skills/scalarian/oh-my-codex/trace"><img src="https://agentmods.dev/badge/skills/scalarian/oh-my-codex/trace/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 trace

Your own site · 80×15
<a href="https://agentmods.dev/skills/scalarian/oh-my-codex/trace"><img src="https://agentmods.dev/badge/skills/scalarian/oh-my-codex/trace.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 195 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 original 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 $0.00022 $0.00195
Opus 5.5 $0.00009 $0.00078
Sonnet 5.5 $0.00004 $0.00039
Haiku 4.5 $0.00002 $0.00019

Measured 1mo ago against content hash bea32a1bc6f4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

trace 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 1mo 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/trace/SKILL.md · 38 lines

What it actually says

Trace

Purpose

Use $trace before a risky edit or review when you need to know what code path actually runs, what it touches, and what could break downstream.

Workflow

  1. Find the entry points.
  2. Follow data flow through the changed or targeted path.
  3. Map side effects:
    • storage writes
    • network calls
    • UI state changes
    • background work
  4. Identify risky branches and missing guards.
  5. Name the concrete files the next pass should touch.

Suggested Tools

  • omx explore search
  • omx explore symbols
  • omx explore refs
  • omx explore diff

Output Standard

  • entry points
  • downstream side effects
  • risky branches
  • likely blast radius
  • recommended edit boundary
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. 1mo ago First seen · 38 lines · 22 tokens per session scan A bea32a1bc6f4

Subscribe to this mod's changes

trace is a skill published in the GitHub repository scalarian/oh-my-codex (73 stars, last pushed 6mo ago), licensed MIT. It adds 22 tokens to every session and 195 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.