Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add RedHatProductSecurity/prodsec-skills --skill authenticationgit clone --depth 1 https://github.com/RedHatProductSecurity/prodsec-skillsWrote 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/redhatproductsecurity/prodsec-skills/authentication)<a href="https://agentmods.dev/skills/redhatproductsecurity/prodsec-skills/authentication"><img src="https://agentmods.dev/badge/skills/redhatproductsecurity/prodsec-skills/authentication/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/redhatproductsecurity/prodsec-skills/authentication"><img src="https://agentmods.dev/badge/skills/redhatproductsecurity/prodsec-skills/authentication.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 | $0.00034 | $0.00347 |
| Opus 5.5 | $0.00014 | $0.00139 |
| Sonnet 5.5 | $0.00007 | $0.00069 |
| Haiku 4.5 | $0.00003 | $0.00035 |
Grade A, and why
authentication 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.
What it actually says
Authentication for External Data Sources
Security Requirement
External data sources MUST require that the principal (user or service) connecting to them is identified and authenticated. The authentication MUST use standard protocols.
Standard Authentication Protocols
| Protocol | Use Case |
|---|---|
| OAuth 2.1 / OIDC | Web APIs, REST services, cloud data sources |
| SPIFFE/SPIRE + mTLS | Service-to-service connections within infrastructure |
| SAML | Federated enterprise data sources |
| Kerberos | On-premise databases and services (Active Directory environments) |
| Client certificates (mTLS) | Machine-to-machine data source access |
What Is Not Acceptable
- Unauthenticated connections to data sources containing any data
- Shared credentials used by all services
- Credentials embedded in connection strings in source code
- Long-lived API keys without rotation (see
api_keys/avoid-api-keys)
Implementation Checklist
- Identify all external data sources accessed by the AI system
- Require authentication for every data source connection
- Use standard authentication protocols (OAuth, mTLS, Kerberos)
- Use unique credentials per service or workload (no shared credentials)
- Store credentials in a secret management system
- Rotate credentials on a regular schedule
- Log authentication events (successes and failures)
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 First seen · 41 lines · 34 tokens per session scan A 9aec98fbdcb0
authentication is a skill published in the GitHub repository RedHatProductSecurity/prodsec-skills (55 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 34 tokens to every session and 347 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 2026-08-30.
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