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dym-harness-sdk

dym-harness-sdk is a skill for Claude Code from Rheinmir/setup. It costs 64 tokens per session (616 once invoked), scanned A, original, MIT.

A workflow for building and testing agents with the Strands harness SDK. It includes setup, tool-call safeguards, tests using a live model, agent evaluations, and contributor checks.

In plain words
What is it for?
Use it to set up a Strands agent, restrict tool calls, write effect-based tests, run evaluations, or test changes to the harness.
Why use it?
It provides separate procedures for checking an agent's effects and for scoring or maintaining the harness, instead of treating every check as a normal unit test.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

not rated 11repo 20d ago A scan 64 tokens original MIT

Good fit Use it to set up a Strands agent, restrict tool calls, write effect-based tests, run evaluations, or test changes to the harness.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rheinmir/setup/dym-harness-sdk
View source ↗ Rheinmir/setup
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.

Any agent
npx skills add Rheinmir/setup --skill dym-harness-sdk
Clone the repo
git clone --depth 1 https://github.com/Rheinmir/setup

Made for: Claude Code.

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 dym-harness-sdk

README.md
[![agentmods](https://agentmods.dev/badge/skills/rheinmir/setup/dym-harness-sdk/github.svg)](https://agentmods.dev/skills/rheinmir/setup/dym-harness-sdk)
Your own site
<a href="https://agentmods.dev/skills/rheinmir/setup/dym-harness-sdk"><img src="https://agentmods.dev/badge/skills/rheinmir/setup/dym-harness-sdk/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.

agentmods 80×15 button for dym-harness-sdk

Your own site · 80×15
<a href="https://agentmods.dev/skills/rheinmir/setup/dym-harness-sdk"><img src="https://agentmods.dev/badge/skills/rheinmir/setup/dym-harness-sdk.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 616 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00064 $0.00616
Opus 5.5 $0.00026 $0.00246
Sonnet 5.5 $0.00013 $0.00123
Haiku 4.5 $0.00006 $0.00062

Measured yesterday against content hash 0f2127d9c61e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dym-harness-sdk 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 yesterday.

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.

.overstack/doyourmagic/harness-sdk/skills/dym-harness-sdk/SKILL.md · 35 lines

What it actually says

Skill: dym-harness-sdk — hub workflow cho Strands harness

When to use

  • User gõ /dym-harness-sdk (không tham số → bảng slug) hoặc /dym-harness-sdk <slug>; hoặc /dym định tuyến tới đây theo domain.
  • Hub chỉ tốn dòng description; thân workflow con chỉ đọc khi được gọi.

Steps

  1. Đọc ARGUMENTS → <slug>. Không có slug → in bảng dưới rồi dừng, không đọc file nào.

    slug mục đích loại
    quickstart Cài strands-harness vào venv cô lập, dựng agent, xem nó lắp gì shell + python
    interventions Gắn chốt chặn tool call: ask / smart / .cedar / chính sách chữ python
    effect-tests Viết test live-model theo kiểu Strands: assert HIỆU ỨNG, không assert lời văn pytest
    evals Chấm agent bằng Strands Evals SDK (repo ngoài) — chưa kiểm chứng python + CLI
    contributor Sửa chính harness: chạy unit/integ/selective-test như CI shell

  2. Tìm file con theo thứ tự, lấy file ĐẦU TIÊN tồn tại rồi đọc ĐÚNG MỘT file: (1) ../dym-harness-sdk-<slug>/SKILL.md (cạnh hub — cài qua npx skills add rheinmir/dym); (2) .overstack/doyourmagic/harness-sdk/skills/dym-harness-sdk-<slug>/SKILL.md (bundle trong dự án); (3) doyourmagic-bundles/harness-sdk/skills/dym-harness-sdk-<slug>/SKILL.md (clone rheinmir/dym cạnh dự án). Làm theo Steps/Rules của file đó; không đọc file con khác; không thấy cả 3 → nói rõ, dừng.

Rules

  • Mỗi sub-skill tự chứa; hub không nhồi cả bundle vào context.
  • workflows.md cạnh bundle là chỉ mục + bảng kiểm chứng + so sánh với overstack, không phải nguồn lệnh.
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. yesterday First seen · 35 lines · 64 tokens per session scan A 0f2127d9c61e

Subscribe to this mod's changes

dym-harness-sdk is a skill published in the GitHub repository Rheinmir/setup (11 stars, last pushed 20d ago), licensed MIT. It adds 64 tokens to every session and 616 once invoked, about $0.0003 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 2026-11-07.

Building agentsTesting
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dym-harness-sdk next to 6 skills from other repositories
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