patterns

patterns is a skill for Claude Code, Codex from tkellogg/open-strix. It costs 102 tokens per session (821 once invoked), scanned A, original, MIT.

An index of guidance for recurring agent problems, including outdated information, operating-system events, browser automation, messaging, parallel work, waiting, and handoffs between agents.

In plain words
What is it for?
Use it to choose an approach for tasks such as reacting to computer events, automating websites, waiting for human input, coordinating agents, or preventing duplicate work.
Why use it?
It helps identify a familiar problem pattern and points to guidance for handling it.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it to choose an approach for tasks such as reacting to computer events, automating websites, waiting for human input, coordinating agents, or preventing duplicate work.

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

Made for: Claude Code, Codex.

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/tkellogg/open-strix/patterns/github.svg)](https://agentmods.dev/skills/tkellogg/open-strix/patterns)
Your own site
<a href="https://agentmods.dev/skills/tkellogg/open-strix/patterns"><img src="https://agentmods.dev/badge/skills/tkellogg/open-strix/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/tkellogg/open-strix/patterns"><img src="https://agentmods.dev/badge/skills/tkellogg/open-strix/patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 821 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00102 $0.00821
Opus 5.5 $0.00041 $0.00328
Sonnet 5.5 $0.00020 $0.00164
Haiku 4.5 $0.00010 $0.00082

Measured 1mo ago against content hash b8a8f55cf75d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 1mo 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.

open_strix/builtin_skills/patterns/SKILL.md · 43 lines

What it actually says

Having problems that look like this?

  • Out-of-date info — world-scanning.md
  • Awareness of surroundings — world-scanning.md
  • Getting ahead of problems — world-scanning.md
  • Sending information or messages between computers — messaging.md
  • Notifying another agent that something happened — messaging.md
  • Reacting when the user opens their laptop, locks the screen, plugs in a USB, joins Wi-Fi, etc. — os-events-macos.md / os-events-windows.md / os-events-linux.md
  • Hooking into anything the operating system already knows about — os-events-{macos,windows,linux}.md
  • Scraping a site that has no API, especially behind a login wall — browser-automation.md
  • Driving a SaaS dashboard to click a button or download a file — browser-automation.md
  • Personal-data dashboards from services that don't expose one — browser-automation.md
  • Need to wait for a human action (click, login, file drop) without burning tokens — async-tasks.md
  • "Wake me up when X happens" where X is a one-shot event — async-tasks.md
  • Pausing this conversation across an indeterminate wait without losing context — async-tasks.md
  • Handing work to another agent (sub-agent, peer, fresh self) — multi-agent-handoff.md
  • What survives across a fresh-context turn (async wake-up, schedule fire, compaction) — context-boundaries.md
  • How to write journal entries that future-you / introspection-you will actually find useful — journal-as-breadcrumbs.md
  • Picking the right temporal primitive (poller / schedule / loop / async-block / OS cron) — scheduling.md
  • Building redundancy into channels, scrapers, sources without overengineering — fallback-chains.md
  • Recognizing your own loops / runaway behavior and stopping yourself — circuit-breaker.md
  • Stuck on something — what to do instead of grit (edit blocks, edit checkpoint.md, find conflicts) — try-harder.md
  • The instinct to "try harder" / "do better" / "be more careful" — try-harder.md (almost always the wrong move)
  • Two parallel things stepping on each other (schedules colliding, pollers in storm, double-messaging, oscillating state files) — coordination.md
  • "It worked fine for weeks then suddenly two of X happened" — coordination.md (S2 collision)
  • No durable place to track what you've noticed, committed to, or finished — interest-backlog.md
  • "I should remember to look into X" / "that was weird but I don't have time now" — interest-backlog.md (log it, drain it later)

Two rules worth pulling forward

These show up repeatedly in the sub-pages but are easy to miss if you only skim the index.

  • The artifact of trying harder is a diff someone else can verify, not a resolution someone else has to trust. If your "fix" is a commitment to do better, it dies the moment your turn ends. See try-harder.md.
  • Journal entries should have handles, not prose. j_abc123 and /tmp/rl.md survive a context boundary; "I spawned a job and will check on it" doesn't. See journal-as-breadcrumbs.md.

It's worth running a five-why's on your problem to see if some of this info applies.

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. 1mo ago First seen · 43 lines · 102 tokens per session scan A b8a8f55cf75d

Subscribe to this mod's changes

patterns is a skill published in the GitHub repository tkellogg/open-strix (93 stars, last pushed 2mo ago), licensed MIT. It adds 102 tokens to every session and 821 once invoked, about $0.0004 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 2026-08-30.

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