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.
npx agentmods add skills/huginnindustries/codecartographer/defect-scannpx skills add HuginnIndustries/CodeCartographer --skill defect-scangit clone --depth 1 https://github.com/HuginnIndustries/CodeCartographerWrote 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.
[](https://agentmods.dev/skills/huginnindustries/codecartographer/defect-scan)<a href="https://agentmods.dev/skills/huginnindustries/codecartographer/defect-scan"><img src="https://agentmods.dev/badge/skills/huginnindustries/codecartographer/defect-scan.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00062 | $0.01139 |
| Opus 5 | $0.00031 | $0.00570 |
| Sonnet 5 | $0.00012 | $0.00228 |
| Haiku 4.5 | $0.00006 | $0.00114 |
Grade A, and why
scan-for-defects 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Scan For Defects
This phase runs six sequential analysis passes, each focused on one category of defect. Read and execute the passes in the order listed below. Do not try to cover all categories at once — complete each pass before starting the next.
The source code to analyze is in the parent directory (../ relative to .codecarto/). This is the repository root.
Prerequisites
Required: Read findings/architecture/architecture-map.md before starting. You need the layer map, public surfaces, and concurrency model to know where to focus.
Optional but valuable: If the following files exist, read them before starting passes 5 and 4 respectively. They provide the behavioral spec to compare code against:
findings/contracts/behavioral-contracts.md— enables spec-grounded analysis in passes 4 and 5.findings/protocols/protocols-and-state.md— enables state machine violation detection in pass 5.
If these files do not exist, the passes still work — they fall back to comparing code against its own documentation (docstrings, type signatures, comments, README).
Pass Execution Order
Run these passes sequentially. Read the pass file, scan the source, record findings, then move to the next pass.
| Pass | File | Focus |
|---|---|---|
| 1 | findings/defect-scan/passes/01-logic-and-correctness.md |
Dead code, boundary errors, null handling, boolean logic, control flow |
| 2 | findings/defect-scan/passes/02-error-handling.md |
Swallowed errors, missing cleanup, uncaught exceptions, retry gaps |
| 3 | findings/defect-scan/passes/03-concurrency-and-resources.md |
Race conditions, lock issues, async pitfalls, resource leaks |
| 4 | findings/defect-scan/passes/04-security-and-trust.md |
Input validation, auth gaps, secrets in code, trust boundaries |
| 5 | findings/defect-scan/passes/05-api-contract-violations.md |
Spec vs. implementation drift, return type mismatches, state machine violations |
| 6 | findings/defect-scan/passes/06-config-and-environment.md |
Hardcoded values, missing validation, dangerous defaults, OS assumptions |
What ships with it
7 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.
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.
- 4d ago First seen · 88 lines · 62 tokens per session scan A 932483cbb97d
scan-for-defects is a skill published in the GitHub repository HuginnIndustries/CodeCartographer (4 stars, last pushed 5d ago), licensed MIT. It adds 62 tokens to every session and 1,139 once invoked, about $0.0003 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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