agent-design-doctrine SKILL.md skillA
agent-design-doctrine from urmzd/dotfiles is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add urmzd/dotfiles/agent-design-doctrine@git:20260717.aa74bbePins git:20260717.aa74bbe in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- urmzd/dotfiles
- Path
dot_agents/skills/agent-design-doctrine/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260717.aa74bbe, committed Jul 17, 2026
- Size
- 4,096 bytes
- Repository stars
- 5
- License
- Apache-2.0
House doctrine for designing LLM agent systems: safety enforced by the harness and tools rather than model goodwill, tools that execute and return results, minimal loop code, interface-first component seams, typed config, deterministic evals over LLM judges, and POC scope discipline. Use when designing or reviewing any agent, tool-use loop, eval harness, or agent-backed CLI, in any framework. Do NOT use for Pydantic AI framework mechanics (use building-pydantic-ai-agents), generic design…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Agent Design Doctrine Stable architectural positions for agent systems. Apply these before writing code and cite the violated rule when reviewing. ## 1. Safety lives in the harness, never the model The model is a planner, not a guard. Enforce every safety property at a layer the model cannot talk its way past. | Layer | Enforcement | | ----- | ----------- | | Database | Read-only role, statement timeout, row limits | | Tool implementation | Validate and sanitize inputs, allowlist operations, cap output size | | Harness | Turn limits, budget caps, kill switches | | Prompt | Guidance only. Never the sole control for anything destructive | If a safety rule is only stated in the system prompt, it does not exist. ## 2. Tools execute and return results A tool call does the work and returns the outcome. The model decides what to do with a failure; the tool never defers execution back to the loop or leaks partial state into context. - Wrong: tool returns SQL for the loop to run later. - Right: tool runs the SQL (under harness limits) and returns rows or a structured error the model can react to. ## 3. Minimal loop code …
Read the whole file at its exact version.
How to install
mdr add urmzd/dotfiles/agent-design-doctrine@sha256:be27f86d591fff72The line at the top of this page pins the label git:20260717.aa74bbe, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_uz7owul6jxokhcgn)
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Versions
The registry has recorded 1 version of this file, committed on Jul 17, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4096 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
urmzd/dotfiles · 5 stars · license Apache-2.0 · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uz7owul6jxokhcgn GET https://markdownregistry.com/api/v1/resolve?ref=urmzd/dotfiles/agent-design-doctrine GET https://markdownregistry.com/api/v1/blob/be27f86d591fff72df7c0327073e2f2ebdf68699c3431f3da8fe1a2916ef03ef
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.