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/saml-identity-provider/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/saml-identity-provider)<a href="https://agentmods.dev/skills/greenpau/go-authcrunch/saml-identity-provider"><img src="https://agentmods.dev/badge/skills/greenpau/go-authcrunch/saml-identity-provider/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/saml-identity-provider"><img src="https://agentmods.dev/badge/skills/greenpau/go-authcrunch/saml-identity-provider.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 | $0.00035 | $0.01171 |
| Opus 5.5 | $0.00014 | $0.00468 |
| Sonnet 5.5 | $0.00007 | $0.00234 |
| Haiku 4.5 | $0.00003 | $0.00117 |
Grade A, and why
saml-identity-provider 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 — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SAML Identity Provider
Read external account attachments when changing local provisioning, connection UI, immutable external keys, or attachment binding in this consumer.
pkg/idp/saml owns provider configuration, metadata, service providers and
request state. pkg/authn supplies the browser transport. Use shared provider
construction and public portal consumers in tests; do not conflate downstream
OIDC sessions with upstream SAML authentication.
Configuration boundary
pkg/idp/saml.Config owns name, realm, driver, metadata location, signing pin,
IdP login URL, ACS URLs, TLS settings, and login-icon configuration. Its
Validate checks required values and applies the azure or generic driver
behavior; saml.NewIdentityProvider constructs the runtime. Shared
idp.IdentityProviderConfig dispatches SAML parameters through idp.NewIdentityProvider.
The new attachment field uses identity/attachment/parser, with shared dispatcher
and consumer coverage. There is no dedicated full SAML directive-parser package or SAML constructor in
pkg/idp/parser; that package currently adapts only OAuth. This is an existing
configuration-parser conformance gap. Do not invent a supported SAML directive
API, or infer one from an embedding server's configuration syntax. A change to
this configuration surface must include its parser and consumer coverage under
the shared parser contract.
Browser transaction and trust
GET initiates an SP AuthnRequest. RelayState is a random transaction identifier, never a redirect destination or browser credential. Bind it server-side to the initiating browser secret, exact configured ACS callback, AuthnRequest ID, validated post-login destination and a five-minute deadline. Admit matching callbacks atomically once, before XML validation; failed verification requires a new initiation. Capacity is bounded; expiry reclamation must not allow replay or evict active state to admit another request. No unconditional IdP-initiated acceptance is supported.
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.
- 17d ago Changed · +5 lines 5f7961bb8281
- 26d ago Changed · +18 lines 5c9c35ccd60a
- 1mo ago Changed · +28 lines 828322c7d61b
- 1mo ago First seen · 46 lines · 35 tokens per session scan A 4f9445ec5f1a
saml-identity-provider is a skill published in the GitHub repository greenpau/go-authcrunch (60 stars, last pushed 10d ago), licensed Apache-2.0. It adds 35 tokens to every session and 1,171 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 2026-09-18.
saml-identity-provider compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| saml-identity-providergreenpau/go-authcrunch | Skill | 60 | 10d ago | Apache-2.0 | A | 35 | 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 |