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 xSAVIKx/okf-skills --skill okf-mongodbgit clone --depth 1 https://github.com/xSAVIKx/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/xsavikx/okf-skills/okf-mongodb)<a href="https://agentmods.dev/skills/xsavikx/okf-skills/okf-mongodb"><img src="https://agentmods.dev/badge/skills/xsavikx/okf-skills/okf-mongodb/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/xsavikx/okf-skills/okf-mongodb"><img src="https://agentmods.dev/badge/skills/xsavikx/okf-skills/okf-mongodb.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- 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 | $0.00126 | $0.00734 |
| Opus 5 | $0.00063 | $0.00367 |
| Sonnet 5 | $0.00025 | $0.00147 |
| Haiku 4.5 | $0.00013 | $0.00073 |
Grade A, and why
okf-mongodb 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 11d 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 — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MongoDB OKF Connector
This skill provides a Go-based CLI tool to document a MongoDB database as an Open Knowledge Format (OKF) bundle. MongoDB is schemaless, so the connector samples documents from each collection and infers a top-level field schema: field name, type (a sorted union when documents disagree), and presence (the percentage of sampled documents that contain the field).
When to Use
Use this skill when you need to:
- Catalog a MongoDB database — one
MongoDB Collectionconcept per collection. - Capture an inferred field schema (
Name | Type | Presence) as grounding for enrichment. - Verify a bundle against a live database in CI, optionally creating missing collections.
MongoDB has no per-field comment store, so enriched descriptions remain in the OKF bundle (there is no description write-back).
Setup
go install github.com/xSAVIKx/okf-skills/skills/okf-mongodb@latest
# …or: cd skills/okf-mongodb && go build -o okf-mongodb .
How to Use
1. Produce an OKF bundle
export MONGODB_URI="mongodb://user:pass@host:27017"
./okf-mongodb produce --db <database> --out <bundle-dir> [--collections a,b] [--sample 100]
--uri(required): connection URI, or setMONGODB_URI(preferred — keeps the secret out of argv). Credentials are stripped before being written toResource.--db(required): database name.--out(required): output OKF bundle directory.--collections: comma-separated allowlist (default: all).--sample: documents to sample per collection for inference (default 100).
Re-running preserves enriched descriptions (incremental produce).
2. Ingest / verify
./okf-mongodb ingest --db <database> --bundle <bundle-dir> [--sync]
- Reports collections that are in the bundle but missing from the database (drift).
--sync: creates those missing collections (structure only; no documents, no description write-back).
3. Inspect the schema (self-description)
./okf-mongodb schema
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.
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.
- 11d ago First seen · 74 lines · 126 tokens per session scan A 299550ef5af0
okf-mongodb is a skill published in the GitHub repository xSAVIKx/okf-skills (33 stars, last pushed 11d ago), licensed Apache-2.0. It adds 126 tokens to every session and 734 once invoked, about $0.0006 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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