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 easyzoom/aix-skills --skill tinycrypt-integrationgit clone --depth 1 https://github.com/easyzoom/aix-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/easyzoom/aix-skills/tinycrypt-integration)<a href="https://agentmods.dev/skills/easyzoom/aix-skills/tinycrypt-integration"><img src="https://agentmods.dev/badge/skills/easyzoom/aix-skills/tinycrypt-integration/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/easyzoom/aix-skills/tinycrypt-integration"><img src="https://agentmods.dev/badge/skills/easyzoom/aix-skills/tinycrypt-integration.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 | $0.00042 | $0.00556 |
| Opus 5 | $0.00021 | $0.00278 |
| Sonnet 5 | $0.00008 | $0.00111 |
| Haiku 4.5 | $0.00004 | $0.00056 |
Grade A, and why
tinycrypt-integration 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 8d 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 — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TinyCrypt Integration
Overview
Use this skill to integrate TinyCrypt primitives safely. Cryptographic code needs test vectors, correct modes, nonce/IV discipline, key handling, and explicit threat boundaries before being used in products.
When To Use
Use this skill when:
- The user wants lightweight crypto primitives on an MCU using TinyCrypt.
- The task involves AES, SHA, HMAC, CTR, CCM, ECC, RNG, key storage, message authentication, or encrypted firmware/data.
- Outputs do not match known vectors or peer devices.
Do not use this skill for TLS session integration. Use mbedtls-integration for full TLS. For standalone ECDH/ECDSA operations, use micro-ecc-integration.
First Questions
Ask for:
- Primitive/mode: AES-CTR, AES-CCM, SHA, HMAC, ECC, or RNG.
- Protocol or data format consuming the primitive.
- Key, IV/nonce, tag length, AAD, and message framing policy without exposing secrets.
- Target MCU/compiler and hardware crypto availability.
- Known test vector or peer output.
Integration Checklist
-
Use test vectors first. Validate primitive and mode with public vectors before product payloads.
-
Define nonce/IV rules. Nonce reuse can break security. Make generation and storage explicit.
-
Separate encryption and authentication. Know whether the mode authenticates data or only encrypts it.
-
Protect key material. Avoid logging keys, IV secrets, raw plaintext, or derived secrets.
-
Handle failures securely. Authentication failure must reject data, not fall back to plaintext.
Common Failures
- AES mode mismatch with peer.
- Nonce/IV reused after reboot.
- Tag length or AAD differs from peer implementation.
- Hash/HMAC input framing differs.
- Test code logs secrets or accepts authentication failures.
Verification
Before claiming TinyCrypt works:
- State primitive/mode, nonce policy, tag length, and framing.
- Confirm public test vectors pass.
- Confirm modified ciphertext/tag fails verification.
- Confirm secrets are not printed or stored insecurely.
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.
- 8d ago First seen · 79 lines · 42 tokens per session scan A fc7a39ddee84
tinycrypt-integration is a skill published in the GitHub repository easyzoom/aix-skills (31 stars, last pushed 1mo ago), licensed MIT. It adds 42 tokens to every session and 556 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 2026-09-03.
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