secret-handling

secret-handling is a skill for Claude Code, Codex from IkarusMK/AIcortex. It costs 34 tokens per session (319 once invoked), scanned A, original, Apache-2.0.

A guide to protecting API keys, access tokens, and passwords. It says to keep secrets in an encrypted vault and refer to them by name instead of placing their values in code or messages.

In plain words
What is it for?
Use it when storing, retrieving, listing, removing, or replacing credentials needed by services and development tools.
Why use it?
It reduces the chance that credentials are exposed in chat, source control, configuration, memory, or logs. It also explains what to do when a secret has leaked.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/ikarusmk/aicortex/secret-handling
Any agent
npx skills add IkarusMK/AIcortex --skill secret-handling
Clone the repo
git clone --depth 1 https://github.com/IkarusMK/AIcortex

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for secret-handling

README.md
[![agentmods](https://agentmods.dev/badge/skills/ikarusmk/aicortex/secret-handling.svg)](https://agentmods.dev/skills/ikarusmk/aicortex/secret-handling)
Your own site
<a href="https://agentmods.dev/skills/ikarusmk/aicortex/secret-handling"><img src="https://agentmods.dev/badge/skills/ikarusmk/aicortex/secret-handling.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 319 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00034 $0.00319
Opus 5 $0.00017 $0.00160
Sonnet 5 $0.00007 $0.00064
Haiku 4.5 $0.00003 $0.00032

Measured 5d ago against content hash 43728c8ed97d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

secret-handling 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 5d 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.

examples/skills/secret-handling/SKILL.md · 32 lines

What it actually says

Secret Handling

When to use

Any time an API key, token, or password appears or is needed.

The rule (hard)

Secrets go in the encrypted vault, immediately, referenced by name — never pasted into chat, committed to a repo, written into a memory, or hardcoded.

How

  • Store: secret_set("SOME_API_KEY", <value>) → encrypted at rest, never returned.
  • Reference: a service/device points at the name (token_env="SOME_API_KEY"), and the server injects the value at call time. The model never sees it.
  • List/remove: secret_list (names only) · secret_delete(name).

Don't

  • Don't ask the user to paste a secret "just to check it".
  • Don't put a secret in a service config, a memory, or a commit — those are not encrypted.
  • Don't echo a secret back, even partially.

If a secret leaks (chat, repo, logs)

Treat it as compromised: rotate it at the source, update the vault with the new value, and remove the exposed copy. A leaked encryption key means re-encrypting the vault — rotate carefully and re-store the affected secrets.

Changes

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.

  1. 5d ago First seen · 32 lines · 34 tokens per session scan A 43728c8ed97d

Subscribe to this mod's changes

secret-handling is a skill published in the GitHub repository IkarusMK/AIcortex (9 stars, last pushed 16d ago), licensed Apache-2.0. It adds 34 tokens to every session and 319 once invoked, about $0.0002 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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