Borrowing it
Nothing to install: this file belongs to greenpau/go-authcrunch. 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/greenpau/go-authcrunch/main/.codex/skills/threat-hunting/SKILL.mdgit clone --depth 1 https://github.com/greenpau/go-authcrunchWrote 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/greenpau/go-authcrunch/threat-hunting)<a href="https://agentmods.dev/skills/greenpau/go-authcrunch/threat-hunting"><img src="https://agentmods.dev/badge/skills/greenpau/go-authcrunch/threat-hunting/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/skills/greenpau/go-authcrunch/threat-hunting"><img src="https://agentmods.dev/badge/skills/greenpau/go-authcrunch/threat-hunting.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 | $0.00047 | $0.03134 |
| Opus 5.5 | $0.00019 | $0.01254 |
| Sonnet 5.5 | $0.00009 | $0.00627 |
| Haiku 4.5 | $0.00005 | $0.00313 |
Grade A, and why
threat-hunting 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 12d 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 — 316 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Threat Hunting
Operating Posture
Treat every authentication shortcut, authorization shortcut, redirect, token source, cookie, forwarded header, parser, cache, and cryptographic decision as a security boundary until proven otherwise.
Skepticism is a verification mode, not a reason to dismiss a report. Translate claims into falsifiable checks, then test or inspect the exact runtime behavior.
Core authorization question — answer it for every protected path:
- What object is being authorized?
- What object is later served, proxied, redirected to, or trusted?
- Are those objects represented by the same normalized value?
- Which checks execute before token validation, ACL evaluation, or signature verification?
Remediation follows coding-directives, validation follows testing-and-ci, and tool side effects follow scripts-and-automation. Use authorization-policy-oauth to audit direct-policy callbacks, opaque sessions, browser/origin binding, and logout. Use local-password-authentication to review enumeration defenses, work schedules, and trusted password imports. Use local-identity-database to audit durable credential, replay, lockout, and cross-instance transaction boundaries. Use authentication-portal-profile to review canonical account selection and identity-bound self-service. Use authentication-portal-mfa to review factor checkpoints, proof binding, and enrollment. Use saml-identity-provider to review signed assertions, request/browser binding, and authoritative certificate pins.
Severity Rubric
| Severity | Criteria |
|---|---|
| Critical | Unauthenticated authn/authz bypass, token forgery, RCE, secret exfiltration |
| High | Authenticated privilege escalation, open redirect to authn bypass, session fixation |
| Medium | Unintended token/secret leakage outside explicit admin debug diagnostics, missing cookie security flags, SSRF with limited reach |
| Low | Defense-in-depth gap, hardening issue with no direct exploit path |
| Info | Coding pattern risk, missing test coverage, informational finding |
What ships with it
6 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.
- 12d ago Changed d978d896fb8e
- 28d ago Changed ca6211823a8a
- 1mo ago Changed · -170 lines · -45 tokens per session cab3482f8424
- 1mo ago Changed · +3 lines fdccbd5376e5
- 1mo ago Changed · +12 lines d6c1b9beafb5
- 1mo ago Changed · +5 lines 5a16a5007dd6
- 1mo ago Changed · +24 lines f080a366f796
- 1mo ago First seen · 442 lines · 92 tokens per session scan A 4a1efa987a40
threat-hunting is a skill published in the GitHub repository greenpau/go-authcrunch (60 stars, last pushed 10d ago), licensed Apache-2.0. It adds 47 tokens to every session and 3,134 once invoked, about $0.0002 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 2026-09-13.
threat-hunting compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| threat-huntinggreenpau/go-authcrunch | Skill | 60 | 10d ago | Apache-2.0 | A | 47 | Codex |
| systematic-debuggingopen-metadata/OpenMetadata | Skill | 16k | yesterday | Apache-2.0 | A | 37 | Claude Code |
| log-error-digestzebbern/claude-code-guide | Skill | 4.7k | 3d ago | MIT | A | 71 | Claude Code, Codex |
| cwv-optimizeradobe/skills | Skill | 319 | yesterday | Apache-2.0 | A | 112 | Claude Code |
| ci-fixersipyourdrink-ltd/bernstein | Skill | 1.2k | yesterday | Apache-2.0 | A | 15 | Claude Code, Codex |
| incident-response-incident-responsermyndharis/antigravity-skills | Skill | 1.9k | 23d ago | MIT | A | 36 | Claude Code |
| triaging-web-analytics-supportPostHog/posthog | Skill | 41k | yesterday | none | A | 151 | Claude Code, Codex |