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 changeroa/lazykatok --skill katokgit clone --depth 1 https://github.com/changeroa/lazykatokWrote 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/changeroa/lazykatok/katok)<a href="https://agentmods.dev/skills/changeroa/lazykatok/katok"><img src="https://agentmods.dev/badge/skills/changeroa/lazykatok/katok/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/changeroa/lazykatok/katok"><img src="https://agentmods.dev/badge/skills/changeroa/lazykatok/katok.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 | $0.00048 | $0.03025 |
| Opus 5 | $0.00024 | $0.01512 |
| Sonnet 5 | $0.00010 | $0.00605 |
| Haiku 4.5 | $0.00005 | $0.00302 |
Grade A, and why
katok scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
100% identical to katok — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.
katok
Use the katok CLI as the only execution surface. This skill stays thin: it checks readiness, calls CLI search commands, retrieves explicit chunks when needed, and summarizes results.
Privacy Rules
- Do not inspect local database internals from the skill.
- Do not handle auth caches or decryption material.
- Do not read KakaoTalk DB files directly. Use
katok sync --source macos --json. - Search commands return minimal snippets and chunk ids by default.
- Full chunk content is shown only when the user explicitly asks for an exact result, asks to open a result, or provides a chunk id.
Commands
export PATH="$HOME/.cargo/bin:$PATH" # use when katok is not found after cargo install
katok doctor --json
katok permissions macos # opens Full Disk Access settings
katok permissions macos --accessibility # also opens Accessibility settings
katok doctor --macos-probe --json # explicit macOS permission/app-data probe
katok sync --source macos --json # reads live macOS KakaoTalk (needs Full Disk Access)
katok sync --json # uses source_adapter from config
katok index --json # builds local EmbeddingGemma vector index
katok index --full --json # full rebuild instead of incremental
katok wipe-index --yes # drops the local index
katok source chats --source macos --json # lists rooms with their chat ids
katok search keyword "검색어" --json
katok search bm25 "검색어" --json
katok search semantic "지난 회의 보고서" --json
katok chunk get <chunk-id> --json
katok chunk get <chunk-id> --redact --json
katok chunk context <chunk-id> --json
katok chunk parent <chunk-id> --json
katok chunks --chat <chat-id> --json # every chunk in one room (metadata only)
katok transcript --chat <chat-id> --json # exports one room to Markdown
katok transcript --chat <chat-id> --since 2026-07-20 --json # only messages at or after a time
katok transcript --chat <chat-id> --out <dir> --json # writes outside the data dir
katok media get --chat <chat-id> --out <dir> --json # photos, albums, videos, and files
katok media get --chat <chat-id> --kind file --json # only file attachments (zip, pdf, xlsx, ...)
katok media get --chat <chat-id> --out <dir> --no-cdn --json # local tiers only
katok media backfill --dry-run --json # what is still fetchable across every room
katok media backfill --json # save it before the presigned links expire
katok send --chat <chat-id> --dry-run --json
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.
- 8d ago First seen · 168 lines · 48 tokens per session scan A 875a0645265d
katok is a skill published in the GitHub repository changeroa/lazykatok (32 stars, last pushed 3d ago), licensed MIT. It adds 48 tokens to every session and 3,025 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to katok, differing in 6 lines, and is treated as a copy.
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