Borrowing it
Nothing to install: this file belongs to doctormacky/okf-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/doctormacky/okf-mcp/main/.agents/skills/okf-dbexplain/SKILL.mdgit clone --depth 1 https://github.com/doctormacky/okf-mcpWrote 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/doctormacky/okf-mcp/okf-dbexplain)<a href="https://agentmods.dev/skills/doctormacky/okf-mcp/okf-dbexplain"><img src="https://agentmods.dev/badge/skills/doctormacky/okf-mcp/okf-dbexplain.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 | $0.00082 | $0.00738 |
| Opus 5 | $0.00041 | $0.00369 |
| Sonnet 5 | $0.00016 | $0.00148 |
| Haiku 4.5 | $0.00008 | $0.00074 |
Grade A, and why
okf-dbexplain 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 7d 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 — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sync OKF Database Facts
Turn dbexplain metadata into a facts-only OKF Bundle: tables, declared and inferred relationships, observations, and reserved overlay indexes. okf-mcp can index this bundle for schema retrieval immediately.
Human-owned Business semantics (business/, metrics/, queries/, policies/)
are outside this Skill. It does not run overlay-draft or edit overlay Concepts.
Standard Procedure
Read references/sync.md.
Phase 0 — Preconditions
- Confirm
dbexplainandokfon PATH; require dbexplainv0.1.11or newer. - Resolve
--bundle-root(absolute). Ask only if ambiguous. - Preserve user source selector; never open database config files.
Phase 1 — Inspect and check
okf dbexplain inspect --include <label>
okf dbexplain check --include <label>
Phase 2 — Sync (review-bound)
okf dbexplain sync \
--include <label> \
--bundle-root <absolute-bundle-dir> \
--generated-at <UTC-with-seconds> \
--dry-run
Report counts, validation, changes, planDigest. Wait for approval, then:
okf dbexplain sync \
--include <label> \
--bundle-root <absolute-bundle-dir> \
--generated-at <same-UTC> \
--expect-plan <sha256:digest>
Phase 3 — Validate physical layer
okf dbexplain validate --bundle-root <absolute-bundle-dir>
Deliver a Facts Report:
- Instances, tables, declared/inferred relationship counts
observations/current.mdhighlights (core tables, clusters, diagnostics)- Nested physical catalog indexes and any untouched legacy scaffolds removed
- Reminder: restart okf-mcp after sync to re-index
- Report Business overlay indexes as empty, preserved, or already populated
Hard Boundaries
- Never read or modify database configuration.
- Never install or upgrade dbexplain.
- Never collect with
--sample; never put credentials or sample rows in the Bundle. - Never run
overlay-draftor create human-owned Business Concepts. - Never invent SQL, joins, or enum meanings.
- Sync preserves existing overlay bytes; only overlay indexes regenerate.
- A future dbexplain version is accepted when the required CLI/JSON contract still works;
report
unsupported_dbexplain_contractat the supplied GitHub Issues URL.
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.
- 7d ago First seen · 88 lines · 82 tokens per session scan A 13e16df3f4f3
okf-dbexplain is a skill published in the GitHub repository doctormacky/okf-mcp (1 stars, last pushed 3d ago), licensed MIT. It adds 82 tokens to every session and 738 once invoked, about $0.0004 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 2026-08-31.
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