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 jacobrask/claude-skills --skill knowledge-basegit clone --depth 1 https://github.com/jacobrask/claude-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/jacobrask/claude-skills/knowledge-base)<a href="https://agentmods.dev/skills/jacobrask/claude-skills/knowledge-base"><img src="https://agentmods.dev/badge/skills/jacobrask/claude-skills/knowledge-base/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/jacobrask/claude-skills/knowledge-base"><img src="https://agentmods.dev/badge/skills/jacobrask/claude-skills/knowledge-base.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 | $0.00073 | $0.00686 |
| Opus 5.5 | $0.00029 | $0.00274 |
| Sonnet 5.5 | $0.00015 | $0.00137 |
| Haiku 4.5 | $0.00007 | $0.00069 |
Grade A, and why
knowledge-base 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 2mo 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 — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Knowledge Base
Topic-based collection of curated links and notes at ~/knowledge/.
Structure
~/knowledge/
├── _index.md # Topic listing
├── _inbox.md # Unprocessed items
├── topics/*.md # Articles, concepts, best practices
├── tools/*.md # Software, libraries (organized by use case)
└── archive/YYYY-MM/ # Full article content (link rot protection)
Entry Formats
Topics (articles/concepts):
**[Title](url)** — Author
1-2 paragraph summary focusing on core insights. Be extremely concise, disregard grammar.
Tools (software/libraries):
### [tool-name](url)
**Platform:** macOS / JavaScript / Web Service
**Install:** Installation method
**Use case:** Problem it solves
Brief summary of why it's useful and when to use it.
**Alternatives:** other-tool (tradeoff)
Workflow: Adding from Safari
- Get tabs:
get_tabs.sh markdownorget_tabs.sh -w N markdown - Process in batches of 8-10 to avoid context overflow
- For each batch:
- Fetch content from URLs
- Read existing topic files
- Route to appropriate topic based on content
- Archive substantial/unique articles to
archive/YYYY-MM/ - Items not fitting existing topics →
_inbox.md
- Update
_index.mdwhen done
Routing
Articles/concepts → topics/:
- Match by content, not just title
- Prefer more specific topics
- If unsure, add to
_inbox.mdwith suggested topic - If topic >500 lines or >30 entries, ask user to split
Software/tools → tools/ by use case:
- Libraries, CLI tools, apps, web services all go here
- Articles about tools →
topics/ - Create new use-case files as needed
Quality Control
When bulk adding, pause and ask if you encounter:
- Out of place or low-quality content
- GitHub repos/gists (ask for routing confirmation)
- Failed fetches (summarize at end, ask if should add URL-only)
Archiving
Archive to archive/YYYY-MM/ when:
- Substantial content (>500 words)
- Likely to disappear (personal blogs)
- Unique insights
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.
- 2mo ago First seen · 94 lines · 73 tokens per session scan A 2c386932bc9b
knowledge-base is a skill published in the GitHub repository jacobrask/claude-skills (5 stars, last pushed 10mo ago), licensed MIT. It adds 73 tokens to every session and 686 once invoked, about $0.0003 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
knowledge-ingest
Ingest documents, articles, conversations, or supplied text into Knowledge with retained originals, sourced claims, entity updates, source notes, and cross-links; also learn durable lessons from a set of conversations, transcripts, or past sessions (/learn), including the Learn from conversations and Learn from Memory…
forget
Remove a personal fact, preference, relationship detail, topic, or prior event from Muse's active memory and stop existing copies or automations from bringing it back. Use for explicit requests such as 'forget that', 'don't remember this about me', or 'remove that from your memory'. Do not use when 'forget it' merely…
mem0-oss-to-platform
Plan, then execute, a migration of a project from the mem0 open-source / self-hosted SDK (local Memory class) to the mem0 Platform / hosted SDK (MemoryClient). TRIGGER when: the developer wants to move, switch, or migrate mem0 off OSS/self-hosted to the hosted API, e.g. "migrate my mem0 setup to the platform", "switch…
Cortex
LifeOS memory, prior-session recall, and learning capture. USE WHEN capture this learning, document this learning, what did we learn recently, recent learnings, cortex, knowledge, knowledge base, search knowledge, what do we know about, archive, harvest, knowledge status, develop note, add to knowledge, add a people…
memory
Use when the user asks to remember, recall, forget, update, search, or inspect durable OpenSquilla memory, including profile facts in USER.md and long-term notes in MEMORY.md or memory//.md.
ha-data-stores
Map of Hope Agent's local data stores and safe read-only query workflow. Use when the user asks where Hope Agent stores data, wants to inspect sessions/messages/memory/logs/background jobs/knowledge indexes/settings, asks the model to query local app data, or debugging requires checking persisted state. Trigger…