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security-code-audit-trace

security-code-audit-trace is a skill for Claude Code from mfakbar127/agent-skills. It costs 57 tokens per session (1,269 once invoked), scanned A, original, no licence file.

A guide for tracing how data moves through a codebase, from where it enters to where it is used.

In plain words
What is it for?
Use it to track user input, follow source-to-sink flows, and investigate injection risks or missing sanitization.
Why use it?
It helps reveal unsafe data paths, including places where untrusted input reaches sensitive operations without adequate cleaning.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the security-code-audit plugin — 7 skills, 3 commands, 1 agent shipped together

not rated 2repo 20d ago A scan 57 tokens no licence

Good fit Use it to track user input, follow source-to-sink flows, and investigate injection risks or missing sanitization.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mfakbar127/agent-skills/security-code-audit-trace
View source ↗ mfakbar127/agent-skills
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 mfakbar127/agent-skills --skill security-code-audit-trace
Clone the repo
git clone --depth 1 https://github.com/mfakbar127/agent-skills

Made for: Claude Code.

Or install security-code-audit, the plugin that ships this one along with the rest of its 7 skills, 3 commands, 1 agent.

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 security-code-audit-trace

README.md
[![agentmods](https://agentmods.dev/badge/skills/mfakbar127/agent-skills/security-code-audit-trace/github.svg)](https://agentmods.dev/skills/mfakbar127/agent-skills/security-code-audit-trace)
Your own site
<a href="https://agentmods.dev/skills/mfakbar127/agent-skills/security-code-audit-trace"><img src="https://agentmods.dev/badge/skills/mfakbar127/agent-skills/security-code-audit-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 security-code-audit-trace

Your own site · 80×15
<a href="https://agentmods.dev/skills/mfakbar127/agent-skills/security-code-audit-trace"><img src="https://agentmods.dev/badge/skills/mfakbar127/agent-skills/security-code-audit-trace.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,269 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 2 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 $0.00057 $0.01269
Opus 5.5 $0.00023 $0.00508
Sonnet 5.5 $0.00011 $0.00254
Haiku 4.5 $0.00006 $0.00127

Measured 2mo ago against content hash b67e54af3b5b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security-code-audit-trace scanned grade A with 2 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| SSRF | `fetch()`, `requests.get()`, `http.Get()` | SSRF |

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

/security-code-audit-trace "os.system" --direction sink-to-source
plugins/security-code-audit/skills/security-code-audit-trace/SKILL.md · 154 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 154 lines · 57 tokens per session scan A b67e54af3b5b

Subscribe to this mod's changes

security-code-audit-trace is a skill published in the GitHub repository mfakbar127/agent-skills (2 stars, last pushed 20d ago), with no licence file. It adds 57 tokens to every session and 1,269 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

DebuggingSecurity
Related

security-code-audit-trace compared with skills from other repositories

security-code-audit-trace next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
security-code-audit-tracemfakbar127/agent-skillsSkill220d agononeA57Claude Code
systematic-debuggingopen-metadata/OpenMetadataSkill16ktodayApache-2.0A37Claude Code
log-error-digestzebbern/claude-code-guideSkill4.7ktodayMITA71Claude Code, Codex
cwv-optimizeradobe/skillsSkill319todayApache-2.0A112Claude Code
ci-fixersipyourdrink-ltd/bernsteinSkill1.2ktodayApache-2.0A15Claude Code, Codex
diagnosing-missing-recordingsPostHog/posthogSkill41ktodaynoneA76Claude Code, Codex
loop-engineeringhuytieu/COG-second-brainSkill1.3k15d agoMITA63Claude Code