knowledge-compiler

A knowledge-collection workflow that gathers information and compiles it into an Obsidian vault, a folder of linked Markdown notes used as a personal knowledge base.

In plain words
What is it for?
Use it to collect updates about people, research topics, or online sources and save organized articles, logs, reports, and indexes in Obsidian.
Why use it?
It reduces the work of collecting research, storing raw findings, and keeping reference articles and indexes updated.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/sonpiaz/hidrix-tools/knowledge-compiler
Any agent
npx skills add sonpiaz/hidrix-tools --skill knowledge-compiler
Clone the repo
git clone --depth 1 https://github.com/sonpiaz/hidrix-tools

Made for: Claude Code, Codex.

Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,056 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00021 $0.01056
Opus 5 $0.00010 $0.00528
Sonnet 5 $0.00004 $0.00211
Haiku 4.5 $0.00002 $0.00106

Measured 2d ago against content hash 4b1544464ca1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

knowledge-compiler 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 2d 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.

integrations/pi-skills/knowledge-compiler/SKILL.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Knowledge Compiler

Build and maintain a personal knowledge base in Obsidian vault.

Knowledge Base location

~/Documents/Obsidian Vault/07 - Knowledge Base 🧠/
├── _index.md          ← Master index (auto-generated)
├── _daily-log.md      ← What changed today
├── people/            ← One article per person you follow
├── concepts/          ← One article per topic/concept
├── raw/               ← Raw collected data by platform
└── output/            ← Your queries, reports, analysis

When to use

Collect + compile (full pipeline)

User says: "collect knowledge", "compile wiki", "cập nhật knowledge base", "thu thập kiến thức"

Run:

bun run ~/hidrix-tools/scripts/compile.ts

This does: collect from follow list → save to SQLite → compile wiki articles → update Obsidian.

Collect only (one person)

User says: "collect @karpathy", "thu thập bài mới của @bcherny"

Run:

bun run ~/hidrix-tools/scripts/compile.ts --user @USERNAME

Research a topic and save to wiki

User says: "research topic X và lưu vào wiki", "tìm hiểu về MCP protocol"

Steps:

  1. Use hidrix tools to search: hidrix_x_search, hidrix_reddit_search, hidrix_web_search
  2. Deep read best results: hidrix_x_thread_reader, hidrix_reddit_thread_reader, hidrix_web_fetch
  3. Write a concept article and save to Obsidian:
cat > ~/Documents/Obsidian\ Vault/07\ -\ Knowledge\ Base\ 🧠/concepts/CONCEPT-NAME.md << 'EOF'
# Concept Name

> Summary in 2-3 sentences

## Key Points

- Point 1
- Point 2

## Sources

- [Source 1](url)
- [Source 2](url)

## Related

- [[other-concept]]
- [[person-name]]

---
Last updated: YYYY-MM-DD
EOF

Save a single piece of content to wiki

User says: "lưu thread này vào wiki", "save this to knowledge base"

Steps:

  1. Read the content (thread, article, video transcript)
  2. Summarize key points
  3. Save to appropriate location:
    • About a person → people/username.md (append, don't overwrite)
    • About a concept → concepts/concept-name.md
    • Raw data → raw/platform/date-title.md
    • Analysis/query result → output/query-title.md

Read the full file on GitHub · 135 lines

Changes

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.

  1. 2d ago First seen · 135 lines · 21 tokens per session scan A 4b1544464ca1

Subscribe to this mod's changes

knowledge-compiler is a skill published in the GitHub repository sonpiaz/hidrix-tools (42 stars, last pushed 4mo ago), licensed MIT. It adds 21 tokens to every session and 1,056 once invoked, about $0.0001 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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