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-oauth/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-oauth)<a href="https://agentmods.dev/skills/greenpau/go-authcrunch/authorization-policy-oauth"><img src="https://agentmods.dev/badge/skills/greenpau/go-authcrunch/authorization-policy-oauth/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-oauth"><img src="https://agentmods.dev/badge/skills/greenpau/go-authcrunch/authorization-policy-oauth.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 | $0.00059 | $0.02141 |
| Opus 5.5 | $0.00024 | $0.00856 |
| Sonnet 5.5 | $0.00012 | $0.00428 |
| Haiku 4.5 | $0.00006 | $0.00214 |
Grade A, and why
authorization-policy-oauth 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 17d 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 — 178 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Authorization Policy OAuth
Read external account attachments when changing local provisioning, connection UI, immutable external keys, or attachment binding in this consumer.
Ownership and public API
pkg/authz/oauth_config.go owns OAuthAuthorizationConfig, its defaults and
validation, and PolicyConfig.ConfigureOAuth. The serialized field is
PolicyConfig.OAuth (oauth). pkg/authz/oauth/parser exposes
NewOAuthAuthorizationConfigFromDirectives(policyName, statements) for complete
encoded statements. Empty input disables the feature; nonempty input requires
exactly one use oauth identity provider NAME. Apply the returned snapshot with
ConfigureOAuth; other policy settings and ACL rules remain independent.
pkg/authz/oauth.go owns HTTP orchestration and bounded session state.
pkg/authz/oauth_state.go integrates opt-in runtime-state
persistence for completed sessions; unfinished upstream transactions stay volatile.
authz.NewGatekeeperWithIdentityProviders(config, providers, logger) selects a
configured shared OAuth provider. NewGatekeeper remains compatible for ordinary
JWT policies and rejects OAuth configuration without a provider. The root
NewServer passes its shared providers; NewServerWithOptions can inject their
upstream login store.
That injection does not share this policy's pending logins or opaque sessions;
affinity is still required for direct-policy journeys. No portal or configured
identity store is needed.
Direct providers must also expose CancelLogin(string, [32]byte, string) bool;
the built-in OAuth provider implements it without changing idp.IdentityProvider.
Root validation rejects missing, disabled, wrong-kind and ambiguous references,
overlapping OAuth endpoint namespaces, and cookie collisions between policies.
Read configuration and operation for exact grammar,
transport semantics, deployment constraints, and examples. Hosts must adapt
their configuration syntax and preserve all three authentication outcomes:
Authorized/Bypassed permits downstream execution; an error denies access;
otherwise the gatekeeper handled the response and the host must preserve it
without invoking downstream handlers. Parser availability alone does not enable
host configuration syntax. Do not modify or run tooling in sibling repositories
during work here.
What ships with it
2 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.
- 17d ago Changed · +17 lines fd145a9a9239
- 29d ago Changed · +3 lines 16d9c5217637
- 1mo ago Changed · +2 lines 155b56d6fa24
- 1mo ago First seen · 156 lines · 59 tokens per session scan A b73e8c8c6ddb
authorization-policy-oauth is a skill published in the GitHub repository greenpau/go-authcrunch (60 stars, last pushed 10d ago), licensed Apache-2.0. It adds 59 tokens to every session and 2,141 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 2026-09-21.
authorization-policy-oauth compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| authorization-policy-oauthgreenpau/go-authcrunch | Skill | 60 | 10d ago | Apache-2.0 | A | 59 | Codex |
| mem0-oss-to-platformmem0ai/mem0 | Skill | 68k | 2d ago | Apache-2.0 | A | 217 | Claude Code, Codex |
| azure-mgmt-botservice-dotnetmicrosoft/skills | Skill | 3.2k | yesterday | MIT | A | 78 | Claude Code |
| fastapi-router-pymicrosoft/skills | Skill | 3.2k | yesterday | MIT | A | 46 | Claude Code |
| dev-runtimelangwatch/langwatch | Skill | 5.0k | yesterday | Apache-2.0 | A | 172 | Claude Code |
| api-designericrisco/rsc-harness | Skill | 503 | 2d ago | MIT | A | 105 | Claude Code, Codex |
| migrate-segw-to-raparc-mcp/arc-1 | Skill | 252 | yesterday | MIT | A | 106 | Claude Code |