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 nklisch/skilltap --skill patternsgit clone --depth 1 https://github.com/nklisch/skilltapWrote 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/nklisch/skilltap/patterns)<a href="https://agentmods.dev/skills/nklisch/skilltap/patterns"><img src="https://agentmods.dev/badge/skills/nklisch/skilltap/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.
<a href="https://agentmods.dev/skills/nklisch/skilltap/patterns"><img src="https://agentmods.dev/badge/skills/nklisch/skilltap/patterns.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00030 | $0.00390 |
| Opus 5.5 | $0.00012 | $0.00156 |
| Sonnet 5.5 | $0.00006 | $0.00078 |
| Haiku 4.5 | $0.00003 | $0.00039 |
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.
What it actually says
Project Patterns Reference
This skill contains detailed pattern documentation for this project. See individual pattern files for full details with code examples.
Available patterns:
- revalidated-execution-port.md — Bind planned operations to adapter requests, revalidate them under lock, then apply through
ExecutionPort. - root-confined-filesystem-port.md — Access managed descendant files through a canonical root and no-follow relative-path operations.
- drift-checked-managed-projection-plan.md — Plan skill trees and MCP config as fingerprinted writes, re-observe owned projections, and fail on drift.
- target-local-resource-state.md — Mutate lifecycle evidence on exact harness bindings and preserve unselected sibling state.
- identity-aware-rollback.md — Roll back only proven owned identities and report post-observed residuals when restoration is incomplete.
- validated-wire-contract.md — Serialize domain values through private wire DTOs and rebuild them through validating constructors.
- validated-string-newtypes.md — Represent bounded domain text with one validated, serde-aware newtype rather than raw
String. - bounded-native-process-port.md — Resolve binaries and run direct argument vectors through the bounded runner with explicit limits.
- isolated-native-fixture-roots.md — Exercise native and filesystem behavior only inside test-support-owned temporary roots and fake binaries.
What ships with it
9 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.
- bounded-native-process-port.md 1.3 KB
- drift-checked-managed-projection-plan.md 5.4 KB
- identity-aware-rollback.md 1.4 KB
- isolated-native-fixture-roots.md 1.3 KB
- revalidated-execution-port.md 1.3 KB
- root-confined-filesystem-port.md 1.5 KB
- target-local-resource-state.md 1.3 KB
- validated-string-newtypes.md 1.2 KB
- validated-wire-contract.md 1.3 KB
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.
- 1mo ago First seen · 23 lines · 30 tokens per session scan A 9366778c37b6
patterns is a skill published in the GitHub repository nklisch/skilltap (6 stars, last pushed 19d ago), licensed MIT. It adds 30 tokens to every session and 390 once invoked, about $0.0001 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 2026-08-31.
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