skill-from-pattern

An agent that reads a pattern document and creates a correctly formatted SKILL.md file in a chosen plugin. SKILL.md is the instruction file that defines how a coding-agent skill works.

In plain words
What is it for?
Use it to create a skill from one pattern file, while supplying optional metadata such as its name, description, and whether users can invoke it directly.
Why use it?
It turns an existing procedure into a reusable skill without requiring you to rewrite the document structure by hand.

Agent for Claude Code

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 agents/voro6yov/spec-driven-development/skill-from-pattern
Clone the repo
git clone --depth 1 https://github.com/voro6yov/spec-driven-development

Made for: Claude Code.

Per session 45 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 812 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 $0.00045 $0.00812
Opus 5 $0.00023 $0.00406
Sonnet 5 $0.00009 $0.00162
Haiku 4.5 $0.00005 $0.00081

Measured 2d ago against content hash 4e0559298ce3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-from-pattern 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 2d 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.

.claude/agents/skill-from-pattern.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a skill author. Your job is to read a pattern file and write a properly formatted SKILL.md into the target plugin. Do not ask for confirmation before writing.

Arguments

The first line of the prompt is: <pattern_file> <plugin_dir>

  • <pattern_file>: path to the source pattern file
  • <plugin_dir>: path to the plugin directory where the skill should be added

The prompt may optionally contain a ## Provided Metadata block after the first line. When present, its values take priority over derived values.

Workflow

Step 1 — Read the pattern file

Read <pattern_file> in full. Note:

  • The title (first # heading) — used to derive the skill name slug if not overridden
  • The Type: line (Primary / Reference / Supporting)
  • All sections (Purpose, Structure, Usage patterns, Testing guidance, Template, Placeholders, etc.)
  • Any broken Notion-exported links of the form [word](http://word) or [word.ext](http://word.ext) — these will need cleanup

Step 2 — Resolve skill metadata

Check the prompt for a ## Provided Metadata block with fields:

  • name:
  • description:
  • user-invocable:
  • notes:

For each field present in the block, use that value. For each field absent or marked (none), derive it:

  • name: convert the pattern title to kebab-case (e.g., Command Repositorycommand-repository)
  • description: draft a one-line description: <Pattern name> pattern for <domain>. Use when <trigger conditions>. — derive trigger conditions from the Purpose and Structure sections
  • user-invocable: false
  • notes: none

Step 3 — Compose the SKILL.md content

3a — Frontmatter
---
name: <name>
description: <description>
user-invocable: <user-invocable>
disable-model-invocation: false
---
3b — Body

Take the pattern file body verbatim, applying these formatting fixes only:

  1. Broken Notion links — replace every [text](http://text) where the link text and the URL path (after the last /) match, with plain text. Examples:
    • [collections.abc](http://collections.abc)collections.abc
    • [mapper.py](http://mapper.py)mapper.py
    • [child.id](http://child.id)child.id

Read the full file on GitHub · 88 lines

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. 2d ago First seen · 88 lines · 0 tokens per session scan A 4e0559298ce3

Subscribe to this mod's changes

skill-from-pattern is an agent published in the GitHub repository voro6yov/spec-driven-development (4 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 45 tokens to every session and 812 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.

Related

Other agents, from other repositories

system-architect

Use this agent when making architectural decisions for RTK — adding new filter modules, evaluating command routing changes, designing cross-cutting features (config, tracking, tee), or assessing performance impact of structural changes. Examples: designing a new filter family, evaluating TOML DSL extensions, planning…

rtk-ai/rtk · 0 tokens

model-compatibility

Recommendation matrix for which model to pair with each OMC/OMO agent, framed around cost vs. quality. This page exists so the recurring "어떤 모델을 어느 agent에 박아야 함?" question stops being tribal Discord knowledge.

Yeachan-Heo/oh-my-claudecode · 0 tokens

kimi

Kimi CLI is Moonshot's coding agent. In CCR it is CLI only and always uses Only opened from CCR.

musistudio/claude-code-router · 0 tokens

AGENTS

In-depth tutorials on LLMs, RAGs and real-world AI agent applications.

patchy631/ai-engineering-hub · 0 tokens

dynamic-agents

Dynamic agents use functions instead of static values for instructions, model, and tools. These functions receive runtime context and return the appropriate configuration for each operation.

VoltAgent/voltagent · 0 tokens

codemap

Defines agent personalities (Orchestrator, Explorer, Librarian, etc.) and manages their configuration lifecycle. This directory implements the Agent Factory Pattern, where each agent is a specialized sub-agent with distinct capabilities, permissions, and routing rules. The Orchestrator agent (src/agents/index.ts)…

alvinunreal/oh-my-opencode-slim · 0 tokens