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 skills add bybren-llc/a-safe-pulse --skill pattern-discoverygit clone --depth 1 https://github.com/bybren-llc/a-safe-pulseWrote 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.
[](https://agentmods.dev/skills/bybren-llc/a-safe-pulse/pattern-discovery)<a href="https://agentmods.dev/skills/bybren-llc/a-safe-pulse/pattern-discovery"><img src="https://agentmods.dev/badge/skills/bybren-llc/a-safe-pulse/pattern-discovery.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00039 | $0.00459 |
| Opus 5 | $0.00019 | $0.00230 |
| Sonnet 5 | $0.00008 | $0.00092 |
| Haiku 4.5 | $0.00004 | $0.00046 |
Grade A, and why
pattern-discovery 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 3d 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.
This is a copy
100% identical to pattern-discovery — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Pattern Discovery Skill
Purpose
Enforce pattern-first development by checking the pattern library before implementing new functionality.
When to Use
- About to create a new API route
- About to create a new UI component
- About to add database operations
- User asks "how do I implement..." or "how should I build..."
Pattern Discovery Protocol
ALWAYS check patterns before writing new code:
Step 1: Check Pattern Library
ls patterns_library/api/ # API route patterns
# UI patterns archived (see docs/archive/harness-upstream/patterns-ui/)
ls patterns_library/database/ # Database patterns
ls patterns_library/testing/ # Testing patterns
Step 2: Review Pattern Index
See patterns_library/README.md for the complete index.
Step 3: Apply or Escalate
If pattern exists: Copy, customize, validate.
If missing: Search codebase, implement following conventions, report gap.
Pattern Matching Guide
| If you need to... | Use this pattern |
|---|---|
| Create authenticated API endpoint | api/user-context-api.md |
| Create admin-only API endpoint | api/admin-context-api.md |
| Handle external webhooks | api/webhook-handler.md |
| Validate API input with Zod | api/zod-validation-api.md |
| Create protected page | ui/authenticated-page.md |
| Build form with validation | ui/form-with-validation.md |
| Add new table with RLS | database/rls-migration.md |
| Test API endpoints | testing/api-integration-test.md |
Reference
- Pattern Index:
patterns_library/README.md - RLS Patterns: See
safe-workflowskill - Testing Patterns: See
testing-patternsskill
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 3d ago First seen · 63 lines · 39 tokens per session scan A 7debce2cf5ff
pattern-discovery is a skill published in the GitHub repository bybren-llc/a-safe-pulse (9 stars, last pushed 5mo ago), licensed MIT. It adds 39 tokens to every session and 459 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to pattern-discovery, differing in 2 lines, and is treated as a copy.
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