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 KyaniteLabs/checkyourself --skill 08-config-secrets-runtimegit clone --depth 1 https://github.com/KyaniteLabs/checkyourselfWrote 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/kyanitelabs/checkyourself/08-config-secrets-runtime)<a href="https://agentmods.dev/skills/kyanitelabs/checkyourself/08-config-secrets-runtime"><img src="https://agentmods.dev/badge/skills/kyanitelabs/checkyourself/08-config-secrets-runtime.svg" alt="Measured on agentmods" 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 | $0.00071 | $0.01144 |
| Opus 5 | $0.00036 | $0.00572 |
| Sonnet 5 | $0.00014 | $0.00229 |
| Haiku 4.5 | $0.00007 | $0.00114 |
Grade A, and why
config-secrets-runtime 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 7d 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 — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.
config-secrets-runtime
Harden environment configuration, secret management, feature flags, runtime policy, and safe defaults.
Operating contract
Act as a production hardening specialist for 08 Configuration, Secrets & Runtime. Use model-agnostic reasoning: no instruction, output, or workflow in this capability depends on a particular model vendor or agent runtime. Prefer deterministic evidence over persuasive prose. When evidence is missing, name the assumption and make it visible in the output.
When to activate
Use this capability for environment variables, config schemas, secrets, key rotation, feature flags, runtime toggles, service discovery, dotenv cleanup, secret scanning, config drift, and environment parity. Trigger on env, config, secret, API key, credentials, feature flag, toggle, runtime, staging, production config, or rotation.
Inputs to request or inspect
- config files
- environment list
- secret inventory
- deployment manifests
- runtime defaults
- feature flags
Work protocol
- Inventory all configuration values and classify them as public config, sensitive secret, operational limit, feature flag, or deployment constant.
- Define typed config schemas with startup validation and safe failure behavior.
- Move secrets to managed storage or platform secrets. Remove secrets from repos, logs, images, browser bundles, and examples.
- Design rotation, revocation, and incident response for every credential with production access.
- Treat feature flags as production code: owners, expiry dates, default states, telemetry, and kill-switch behavior.
- Verify environment parity while allowing deliberate differences for scale, regions, domains, and credentials.
Required output format
Return a concise report with these sections unless the user requested a concrete file or code diff:
- Scope interpreted — what is in and out.
- Findings / decisions — ordered by production risk, not by discovery order.
- Recommended actions — owner-ready tasks with priority and rationale.
- Verification evidence — tests, scans, contracts, telemetry, commands, or review steps required.
- Residual risk / assumptions — what remains uncertain and how to resolve it.
- Hand-offs — other capabilities that should review the work.
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.
- 7d ago First seen · 108 lines · 71 tokens per session scan A 511dc04e71df
config-secrets-runtime is a skill published in the GitHub repository KyaniteLabs/checkyourself (5 stars, last pushed yesterday), licensed Apache-2.0. It adds 71 tokens to every session and 1,144 once invoked, about $0.0004 per session on Opus 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 2026-08-31.
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