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 jamro/tiny-engineer --skill tiny-engineer-playgit clone --depth 1 https://github.com/jamro/tiny-engineerWrote 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/jamro/tiny-engineer/tiny-engineer-play)<a href="https://agentmods.dev/skills/jamro/tiny-engineer/tiny-engineer-play"><img src="https://agentmods.dev/badge/skills/jamro/tiny-engineer/tiny-engineer-play/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/jamro/tiny-engineer/tiny-engineer-play"><img src="https://agentmods.dev/badge/skills/jamro/tiny-engineer/tiny-engineer-play.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 | $0.00081 | $0.00537 |
| Opus 5.5 | $0.00032 | $0.00215 |
| Sonnet 5.5 | $0.00016 | $0.00107 |
| Haiku 4.5 | $0.00008 | $0.00054 |
Grade A, and why
tiny-engineer-play scanned grade A with 1 finding 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 9d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
It reads `TINY_ENGINEER_URL` (default `http://tiny-engineer.local`) and `TINY_ENGINEER_TOKEN` from the environment, prints the robot's JSON reply when the clip ends, and exits 1 with the reason on any error. It needs `cu The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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.
- 9d ago First seen · 39 lines · 81 tokens per session scan A da2314b20e7c
tiny-engineer-play is a skill published in the GitHub repository jamro/tiny-engineer (688 stars, last pushed 2d ago), with no licence file. It adds 81 tokens to every session and 537 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-07.
Other skills, from other repositories
native-modules
When integrating device APIs, bridging to native SDKs, or debugging platform-specific behavior.
assembly
Expert x86-64 and ARM64 assembly assistance covering registers, calling conventions, stack frames, and inline asm. Use when writing low-level code, optimizing hot loops, or reverse engineering binaries.
c
Expert C programming assistance covering pointers, manual memory management, struct layout, and POSIX APIs. Use when developing systems software, embedded firmware, high-performance libraries, or OS kernels.
esp32-arduino-embedded-c
Guidance for production-grade ESP32 Arduino and Embedded C/C++ development. Use when building firmware for ESP32, ESP32-S3, or ESP32-C3 microcontrollers, optimizing FreeRTOS tasks, managing SRAM/PSRAM, writing ISR-safe code, or handling dual-core concurrency and hardware peripherals.
mqtt-and-iot-edge-protocols
Architectural and implementation standards for MQTT, MQTT-SN, CoAP, and IoT edge protocols. Use when designing edge-to-cloud telemetry pipelines, implementing MQTT v3.1.1/v5.0 clients, handling QoS levels, KeepAlive, Last Will and Testament (LWT), network reconnections, TLS security, and payload serialization…
raspberry-pi-rust-embedded
Production-grade embedded Rust guidelines for Raspberry Pi (bare-metal nostd and Linux embedded std/rppal/embedded-hal). Use when developing low-latency hardware control apps, embedded Rust drivers, Linux GPIO/SPI/I2C/UART software, real-time interrupt handlers, and memory-safe hardware abstractions.