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 sangmin7648/tacit --skill tacit.knowledgegit clone --depth 1 https://github.com/sangmin7648/tacitWrote 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/sangmin7648/tacit/tacit.knowledge)<a href="https://agentmods.dev/skills/sangmin7648/tacit/tacit.knowledge"><img src="https://agentmods.dev/badge/skills/sangmin7648/tacit/tacit.knowledge/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/sangmin7648/tacit/tacit.knowledge"><img src="https://agentmods.dev/badge/skills/sangmin7648/tacit/tacit.knowledge.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 | $0.00099 | $0.00872 |
| Opus 5.5 | $0.00040 | $0.00349 |
| Sonnet 5.5 | $0.00020 | $0.00174 |
| Haiku 4.5 | $0.00010 | $0.00087 |
Grade A, and why
tacit.knowledge 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 9d 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 — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.
tacit Knowledge Base Query
You are retrieving relevant knowledge from the user's local tacit knowledge database using the tacit CLI.
Available Commands
tacit list [duration] — List entries created within duration (default: 1h). Supports: 30m, 1h, 24h, 1d, 7d, 2w
tacit search [--duration <d>] <pattern> — Full-text search across all entries (title + summary + content). Optional --duration limits to entries created within that window.
tacit get <file-path> — Print full content of a specific entry
Process
When the user invokes /tacit.knowledge <prompt>, extract the time window from the prompt if mentioned (e.g. "today", "this week", "last hour"). If no time is specified, default to 1h for list.
Step 1 — Run list agent and search agent IN PARALLEL
List agent — retrieves recent entries:
tacit list <duration>
- Use the time window from the prompt if specified; otherwise use
1h - Parse the output: each entry has
[datetime] title,File: <path>, and optionallySummary: <first line> - Collect all file paths from the output
Search agent — finds topically relevant entries:
- Extract 2–4 keywords from the user's prompt (nouns, domain terms, key verbs)
- Run
tacit search <keyword>for each keyword to maximize recall. If a time window was identified, pass--duration <d>to narrow results (e.g.tacit search --duration 1h <keyword>) - Collect all unique file paths from results
- Deduplicate across keywords
Each agent returns: a list of { file_path, title, created_at, summary_snippet } objects.
Step 2 — Merge results
In the main thread:
- Union the file paths from both agents, deduplicated
- If a file path appears in both, it is high-confidence relevant — prioritize it
- Limit to the 5 most relevant entries to avoid context overload (prefer recent + multi-source matches)
Step 3 — Fetch full content for top entries
Run a single command with all selected file paths at once:
tacit get <file-path-1> <file-path-2> <file-path-3> ...
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.
- 9d ago Changed 5c973d46edd3
- 1mo ago First seen · 73 lines · 99 tokens per session scan A 02e7956623a6
tacit.knowledge is a skill published in the GitHub repository sangmin7648/tacit (9 stars, last pushed 9d ago), licensed MIT. It adds 99 tokens to every session and 872 once invoked, about $0.0004 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.
Other skills, from other repositories
harness-creator
Build, audit, and improve harnesses that make AI coding agents reliable: AGENTS.md/CLAUDE.md instruction files, feature/state tracking, verification gates, scope boundaries, session handoff, memory persistence, context budgets, tool-permission safety, and multi-agent coordination. Use this whenever a coding agent is…
capabilities
Your capability catalog — read this at boot. Lists the temporal date-range skills and the external integrations (reached via the loopback broker) available to you as a spawned worker, and exactly how to call each. Read-only. Consult it whenever you're unsure what tools/integrations you have or how to invoke them.
temporal
Resolve ANY named time window — today, yesterday, thisWeek, lastWeek, last7Days, last30Days, last90Days, thisMonth, lastMonth, thisQuarter, lastQuarter, thisYear, lastYear, last12Months — or an arbitrary range (lastNdays / lastNweeks / lastNmonths) to a concrete ISO date range relative to your run time. Read-only: no…
last30Days
Resolve "last30Days" to a concrete ISO date range relative to your run time — a rolling 30-day window ending today. Returns inclusive civil dates plus exact UTC instants so you have temporal context without computing dates by hand. Read-only: no writes, no network. Use before a "last 30 days" / trailing-month task…
md-audit
Read-only code quality audit — scan the current working directory for common issues (bugs, dead code, security hotspots, missing error handling) and return a prioritised findings report. No files are edited. Use when asked to "audit the code", "quick audit", "find issues", "code scan", or "what's wrong with this…
thisQuarter
Resolve "thisQuarter" to a concrete ISO date range relative to your run time — this quarter so far (quarter start → today). Returns inclusive civil dates plus exact UTC instants so you have temporal context without computing dates by hand. Read-only: no writes, no network. Use before a quarter-to-date task (QTD…