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 scaccogatto/okf-skills --skill okfgit clone --depth 1 https://github.com/scaccogatto/okf-skillsWrote 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/scaccogatto/okf-skills/okf)<a href="https://agentmods.dev/skills/scaccogatto/okf-skills/okf"><img src="https://agentmods.dev/badge/skills/scaccogatto/okf-skills/okf/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/scaccogatto/okf-skills/okf"><img src="https://agentmods.dev/badge/skills/scaccogatto/okf-skills/okf.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00127 | $0.02181 |
| Opus 5.5 | $0.00051 | $0.00872 |
| Sonnet 5.5 | $0.00025 | $0.00436 |
| Haiku 4.5 | $0.00013 | $0.00218 |
Grade A, and why
okf 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 161 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Open Knowledge Format (OKF) skill
OKF represents knowledge as a directory of markdown files with YAML frontmatter. It is minimal by design: no schema registry, no runtime, no SDK. Your job is to produce, maintain, and consume OKF bundles conformant with the spec, not your memory of it.
Always read the canonical spec before non-trivial work: reference/SPEC.md. It is the verbatim OKF v0.2 specification and the source of truth for every rule below.
The one hard rule
A bundle is conformant (§11) iff: every non-reserved .md file has a parseable
YAML frontmatter block, and every such block has a non-empty type field.
Everything else is soft guidance. Consumers MUST tolerate missing optional
fields, unknown types, and broken links — never reject a bundle over them.
Conventions to apply
- One concept = one file. The file path (minus
.md) is the concept ID. - Frontmatter:
typeis required. Addtitle,description,tagswhen they aid consumption; addresource(a canonical URI) only for concepts bound to a real asset — omit it for abstract concepts. - Body: prefer structural markdown (headings, tables, lists, fenced code).
Conventional headings:
# Schema,# Examples,# Computation. - Cross-links: standard markdown links; prefer absolute bundle-relative
form (
/services/auth-api.md). A link asserts a relationship; its kind lives in the surrounding prose, not the link. - Reserved files:
index.md(directory listing, no frontmatter, except the bundle-root index, which may carryokf_versionand this plugin'supkeep: enforcedopt-in flag, plusrecursive: true(or a depthn: levels below the root,trueis 6) to make the hook watch nested git repos) andlog.md(ISO-dated history, newest first). Never use these names for concepts. - What goes in
log.md: lifecycle events only, written in the bundle-rootlog.md: a bundle created, a concept deprecated or retired, one concept superseding another, concepts regenerated after their source changed, a verification pass. Routine edits to a concept do not get an entry: itsgeneratedand git already record them. A log is append-only, so never rewrite or drop an existing entry.
What ships with it
7 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.
- 4d ago Changed · +1 lines 34ed98afdccd
- 27d ago Changed · +7 lines ad4a2d130643
- 1mo ago Changed · +1 lines 2bb0823455f6
- 1mo ago Changed · +4 lines 89bd969c90f2
- 1mo ago First seen · 148 lines · 127 tokens per session scan A f3bf590ef2d8
okf is a skill published in the GitHub repository scaccogatto/okf-skills (426 stars, last pushed 4d ago), licensed MIT. It adds 127 tokens to every session and 2,181 once invoked, about $0.0005 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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Operating rules for the .okf/ knowledge bundle — filing new concepts, the board, the journal, the daily snapshot, closing work, source attribution, and the generated/verified attestation policy. Use before reading from or writing anything into .okf/.
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ontology
Ontology-based entity discovery and validation for mnemonic memories. Define custom namespaces, entity types, traits, and relationships. Triggers: "entity discovery", "validate ontology", "define namespaces", "resolve entity references", "list ontologies", "show namespaces", "entity types", "entity relationships"…