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/authorization-policy-acl/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/authorization-policy-acl)<a href="https://agentmods.dev/skills/greenpau/go-authcrunch/authorization-policy-acl"><img src="https://agentmods.dev/badge/skills/greenpau/go-authcrunch/authorization-policy-acl/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/authorization-policy-acl"><img src="https://agentmods.dev/badge/skills/greenpau/go-authcrunch/authorization-policy-acl.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 | $0.00033 | $0.01910 |
| Opus 5.5 | $0.00013 | $0.00764 |
| Sonnet 5.5 | $0.00007 | $0.00382 |
| Haiku 4.5 | $0.00003 | $0.00191 |
Grade A, and why
authorization-policy-acl 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 — 161 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Authorization Policy ACLs
Ownership and public APIs
Use cryptographic-signing to configure or
change strict access-token profiles and cache admission before ACL evaluation.
The optional PolicyConfig.AccessTokenProfile applies to incoming signed tokens
and cannot be combined with direct OAuth. It does not replace ACLs, enrichment,
external authorization or separately configured credential authenticators.
pkg/acl owns field definitions, condition compilation, matching and projection.
pkg/authz owns policy configuration and gatekeeper construction;
pkg/authz/validator supplies authenticated user claims and authoritative request
metadata to every guardian. Provider authentication and portal transformations
remain separate boundaries. The request-time enrichment contract
owns the optional validator/gatekeeper hook that supplies detached custom
claims before every guardian, including cached and authenticated-user decisions. The
external authorization contract adds a required
decision after all local checks, using the original authenticated identity.
Custom ACL aliases do not assign roles, change
headers, rewrite JWTs, or alter the user's normalized GetData() representation.
acl.FieldConfig has Name, Claim, and Type, with matching snake_case
JSON/XML/YAML tags. Validate() has no mutation or IO. Names are case-sensitive
ASCII identifiers: an initial letter or underscore, then letters, digits,
underscores or hyphens, at most 128 characters. Standard fields, standard aliases,
temporal/path-ACL internals, and conflicting matcher/shortcut keywords are reserved.
Claim keys are nonempty literal top-level keys, with no control characters or
surrounding whitespace. Dots, pipes, commas, spaces and URL punctuation are
literal; there is no nested lookup, network access, or placeholder expansion.
Types are acl.FieldTypeString (string) and acl.FieldTypeStringList
(string_list). There are no inferred types or implicit defaults.
What ships with it
1 file 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 · +6 lines b78f9f12dad3
- 29d ago Changed · +5 lines a09c1fcf6d44
- 1mo ago Changed · +14 lines 5a00f6f77a60
- 1mo ago First seen · 136 lines · 33 tokens per session scan A cd244df8e249
authorization-policy-acl is a skill published in the GitHub repository greenpau/go-authcrunch (60 stars, last pushed 10d ago), licensed Apache-2.0. It adds 33 tokens to every session and 1,910 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 2026-09-29.
authorization-policy-acl compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| authorization-policy-aclgreenpau/go-authcrunch | Skill | 60 | 10d ago | Apache-2.0 | A | 33 | Codex |
| verify-omnigentomnigent-ai/omnigent | Skill | 11k | yesterday | Apache-2.0 | A | 100 | Claude Code, Codex |
| test-masterJeffallan/claude-skills | Skill | 12k | 7d ago | MIT | A | 104 | Claude Code |
| eval-dataset-designbojieli/ai-agent-book | Skill | 57k | 29d ago | Apache-2.0 | A | 138 | Claude Code, Codex |
| dogfoodcallstack/agent-device | Skill | 5.3k | yesterday | MIT | A | 55 | Claude Code |
| cua-driverdavidondrej/skills | Skill | 4.3k | 3d ago | MIT | A | 68 | Claude Code, Codex |
| test-warp-uiwarpdotdev/warp | Skill | 66k | yesterday | AGPL-3.0 | A | 55 | Claude Code |