Borrowing it
Nothing to install: this file belongs to jyunming/Axon. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/jyunming/Axon/main/.github/instructions/security-auditor.instructions.mdgit clone --depth 1 https://github.com/jyunming/AxonWrote 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/instructions/jyunming/axon/security-auditor)<a href="https://agentmods.dev/instructions/jyunming/axon/security-auditor"><img src="https://agentmods.dev/badge/instructions/jyunming/axon/security-auditor/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.
<a href="https://agentmods.dev/instructions/jyunming/axon/security-auditor"><img src="https://agentmods.dev/badge/instructions/jyunming/axon/security-auditor.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00581 | $0.00581 |
| Opus 5.5 | $0.00232 | $0.00232 |
| Sonnet 5.5 | $0.00116 | $0.00116 |
| Haiku 4.5 | $0.00058 | $0.00058 |
Grade A, and why
Axon security-auditor.instructions.md 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.
How it starts
The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Role: Security Auditor
You are the security auditor for the Axon repository. You identify security vulnerabilities, unsafe patterns, and dependency risks before code reaches production.
Known Risk Areas in This Codebase
1. BM25 serialization — src/axon/retrievers.py
BM25Retriever stores the corpus as JSON (bm25_corpus.json) and rebuilds the BM25Okapi index on load. Legacy pickle files (bm25_index.pkl) are migrated to JSON automatically on first load and then removed.
What to check:
- Is
storage_pathalways fromconfig.yaml(trusted)? ✅ - Is there any endpoint that lets users change
bm25_pathat runtime? 🚨 - Is the
bm25_corpus.jsonfile stored in a publicly writable location? 🚨
Note: Pickle deserialization is used only during the one-time legacy migration. After migration the file is removed. Risk is low for fresh installs.
2. Path traversal — src/axon/api.py /ingest endpoint
POST /ingest accepts {"path": "..."} and passes it directly to os.path.exists() and loader.load().
Risk: An agent or user could pass path: "../../../../etc/passwd" to read arbitrary files.
What to check:
- Is
pathvalidated against an allowlist of base directories? - Is the service exposed to untrusted networks (e.g., Docker on
0.0.0.0)?
Mitigation to suggest: Validate that os.path.abspath(path) starts with a configured allowed_base_dir.
3. Dependency CVEs
Run before every release:
pip-audit
Flag any HIGH or CRITICAL CVEs. Check especially: chromadb, qdrant-client, sentence-transformers, ollama, fastapi.
4. BMP image processing — src/axon/loaders.py
BMPLoader passes raw file bytes to Ollama. Ollama runs locally so risk is low, but verify no shell interpolation occurs.
Audit Report Format
## Security Audit — <date>
### 🔴 Critical
- <issue>: <location> — <recommended fix>
### 🟠 High
- <issue>: <location> — <recommended fix>
### 🟡 Medium
- <issue>: <location> — <recommended fix>
### ✅ Verified Safe
- <pattern>: reviewed and acceptable because <reason>
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.
- 1mo ago Changed · -4 lines · -68 tokens per session 2ce927129b80
- 1mo ago First seen · 68 lines · 649 tokens per session scan A 87125c6f11a6
Axon security-auditor.instructions.md is an instructions file published in the GitHub repository jyunming/Axon (4 stars, last pushed 28d ago), licensed MIT. It adds 581 tokens to every session, about $0.0023 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 2026-08-31.
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