agentmods.dev

pattern

A command that shows reusable solution patterns from a course's pattern catalogue, filtered by a topic, keyword, or pattern ID. The catalogue is a collection of problem-solving techniques and examples.

In plain words
What is it for?
Looking up one pattern, finding patterns related to a topic such as Fourier analysis or induction, or listing all available patterns.
Why use it?
It helps learners find the relevant technique without searching the entire course catalogue manually.

Command

91 1mo ago A scan 18 tokens original MIT
View the source file OPTIMETA/PAIDEIA
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 commands/optimeta/paideia/pattern
Clone the repo
git clone --depth 1 https://github.com/OPTIMETA/PAIDEIA
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 402 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 $0.00018 $0.00402
Opus 5 $0.00009 $0.00201
Sonnet 5 $0.00004 $0.00080
Haiku 4.5 $0.00002 $0.00040

Measured yesterday against content hash 7d5b5092f7c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 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.

plugins/paideia/commands/pattern.md · 36 lines

What it actually says

Output language

Read INTERFACE_LANG from .course-meta (default en). All user-facing prose must be in that language. Keep in English regardless: file paths, slash command names, pattern IDs (P1, P2…), and the pattern-card field labels (Recognition:, Move:, Seen in:, Topic:).

Read course-index/patterns.md. If missing, tell the user to run /analyze first.

Query: $ARGUMENTS

Procedure:

  1. Filter patterns:

    • If query starts with § or Ch or similar: return patterns whose Topic field includes that section
    • If query matches P\d+ (e.g., P7): return that single pattern plus cross-references
    • If query is a keyword (e.g., maxwell, fourier, induction): return patterns matching name/recognition/move text (case-insensitive)
    • If query is all or empty: return the full list, grouped by part/topic

  2. For each matching pattern, render as a compact card:

    [Pk] <name>
Recognition: <signal>
Move: <operation, 1-2 lines>
Seen in: <problem IDs>
Topic: <§ numbers>

  3. End with a prompt (in $INTERFACE_LANG): "Any pattern here that would be hard to recognize at first sight? Tell me its number — we'll drill just that one with /blind <problem>."

Keep total output under 40 lines. This is a recognition tool, not a tutorial. If the user wants depth on one pattern, they'll ask.

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 · 36 lines · 18 tokens per session scan A 7d5b5092f7c5

Subscribe to this mod's changes

pattern is a command published in the GitHub repository OPTIMETA/PAIDEIA (91 stars, last pushed 1mo ago), licensed MIT. It adds 18 tokens to every session and 402 once invoked, about $0.0001 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 2026-08-30.

Learning and teachingclaude-codeclaude-code-pluginengineeringexam-preplocal-firstmarkdown
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