patterns

patterns is a skill for Claude Code from ai-analyst-lab/ai-analyst. It costs 221 tokens per session (1,132 once invoked), scanned A, original, MIT.

A searchable collection of recurring patterns found in earlier analyses. It can show patterns for the current dataset or across datasets, where a dataset is a set of related data used for analysis.

In plain words
What is it for?
Use it to browse, search, and inspect established patterns during or before an analysis.
Why use it?
It makes earlier findings easier to reuse and helps check whether a new result resembles a behavior seen before.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to browse, search, and inspect established patterns during or before an analysis.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ai-analyst-lab/ai-analyst/patterns
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 ai-analyst-lab/ai-analyst --skill patterns
Clone the repo
git clone --depth 1 https://github.com/ai-analyst-lab/ai-analyst

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 patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/ai-analyst-lab/ai-analyst/patterns/github.svg)](https://agentmods.dev/skills/ai-analyst-lab/ai-analyst/patterns)
Your own site
<a href="https://agentmods.dev/skills/ai-analyst-lab/ai-analyst/patterns"><img src="https://agentmods.dev/badge/skills/ai-analyst-lab/ai-analyst/patterns/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 patterns

Your own site · 80×15
<a href="https://agentmods.dev/skills/ai-analyst-lab/ai-analyst/patterns"><img src="https://agentmods.dev/badge/skills/ai-analyst-lab/ai-analyst/patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 221 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,132 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 $0.00221 $0.01132
Opus 5 $0.00111 $0.00566
Sonnet 5 $0.00044 $0.00226
Haiku 4.5 $0.00022 $0.00113

Measured 2d ago against content hash c041dca530a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-13, from the pricing page.

Security

Grade A, and why

patterns 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • patterns — 89% identical, 13 lines differ
.claude/skills/patterns/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Patterns

Purpose

Browse and search recurring patterns discovered across analyses. Patterns are auto-extracted after each analysis archive and represent behaviors that appear consistently in the data.

When to Use

  • User says /patterns or "what patterns have we seen?"
  • During analysis, to check if a finding matches a known pattern
  • At session start, to remind the user of established behaviors

Invocation

/patterns — list patterns for the active dataset /patterns --global — list patterns across all datasets /patterns search={term} — search patterns by keyword /patterns {id} — show full details for a specific pattern

Instructions

Step 0: Determine Active Dataset

Before loading patterns, identify the active dataset:

  1. Read .knowledge/active.yaml to get the active dataset name
  2. If the file doesn't exist or is empty, default to checking all datasets
  3. Use this dataset name when filtering patterns and referencing dataset-specific files

This ensures you're searching patterns for the correct dataset and providing accurate context.

Step 1: Load Patterns

  1. Check if .knowledge/analyses/_patterns.yaml exists:
    • If it doesn't exist: "No patterns recorded yet. The pattern system initializes after your first analysis is archived."
    • If it exists but is empty: "No patterns recorded yet. Complete 2-3 analyses and recurring patterns will emerge."
  2. If --global flag: also check and read .knowledge/global/cross_dataset_observations.yaml (same existence checks apply).
  3. Load pattern data from existing files.

Step 2: Execute Command

List patterns (/patterns):

  • Filter to active dataset (unless --global)
  • Sort by occurrences descending (most established first)
  • Display as a table: type, description, occurrences, confidence, last seen
  • Show total count

Show specific (/patterns {id}):

  • Display: description, type, all evidence (with analysis IDs), dimensions, metrics, suggested investigation
  • Offer: "Want to investigate this pattern further?"

Read the full file on GitHub · 103 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 · 103 lines · 221 tokens per session scan A c041dca530a5

Subscribe to this mod's changes

patterns is a skill published in the GitHub repository ai-analyst-lab/ai-analyst (298 stars, last pushed 3d ago), licensed MIT. It adds 221 tokens to every session and 1,132 once invoked, about $0.0011 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 2026-09-12.

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