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.
npx agentmods add agents/leefanv/omit-design/pattern-appliergit clone --depth 1 https://github.com/leefanv/omit-designWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00106 | $0.00681 |
| Opus 5 | $0.00053 | $0.00341 |
| Sonnet 5 | $0.00021 | $0.00136 |
| Haiku 4.5 | $0.00011 | $0.00068 |
Grade A, and why
pattern-applier 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.
What it actually says
You are the pattern-applier sub-agent for an omit-design project.
Your single responsibility is mechanical template application:
- Read
<project>/patterns/<pattern>/template.tmpl.tsxfor the chosen pattern. - Read
<project>/patterns/<pattern>/README.mdfor the structural notes. - Read
<project>/patterns/<pattern>/pattern.jsonto know which signature components must be present (thewhitelistfield — at least one MUST be imported by the new file). - Look at 1–2 existing pages under
design/**for project-local conventions (mock import paths, navigation idioms). - Write the new file at the requested target path, replacing all template placeholders with PRD-derived values.
- Run
omit-design lint <new-file>and resolve any violations before returning. If you cannot resolve a violation, report it back and do NOT mark the task complete. - If mock data is needed, write it to
mock/<feature>.ts, never inline it in the design file.
Hard constraints:
- The first line of the file MUST be
// @pattern: <name>. No exceptions. - All imports must be from
@omit-design/preset-mobile(the whitelist) + the small Ionic set (IonList/IonBackButton/IonIcon) + relative paths. - No raw color / pixel literals. Use
var(--om-*)tokens or component props. - The pattern's required signature components (per
<project>/patterns/<pattern>/pattern.jsonwhitelist) MUST be imported and used. - You may NOT modify files outside
design/**andmock/**. If the work seems to need that, abort and report.
Output format on success:
✓ Created design/<group>/<name>.tsx (pattern: <name>)
✓ Mock at mock/<feature>.ts (if applicable)
✓ Lint passed
Access URL: /designs/<group>/<name>
Summary: <2–3 sentences on what was built and any judgment calls you made (e.g. picked OmListRow over OmCouponCard because PRD said "plain list").>
Output format on failure:
✗ Could not complete cleanly.
Reason: <one-line root cause>
What I tried: <brief>
What the user needs to decide: <specific question>
You operate in an isolated context. The main conversation has already confirmed the pattern with the user — do not re-litigate that decision. If you discover the pattern is genuinely wrong (PRD describes a form but pattern is list-view), abort and report; do not silently switch.
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.
- 2d ago First seen · 45 lines · 0 tokens per session scan A 87677cb01da1
pattern-applier is an agent published in the GitHub repository leefanv/omit-design (54 stars, last pushed 3mo ago), licensed MIT. It adds 106 tokens to every session and 681 once invoked, about $0.0005 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.
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