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 agentmods add skills/adampoit/ai/jjnpx skills add adampoit/ai --skill jjgit clone --depth 1 https://github.com/adampoit/aiWhat 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 | $0.00055 | $0.00943 |
| Opus 5 | $0.00028 | $0.00472 |
| Sonnet 5 | $0.00011 | $0.00189 |
| Haiku 4.5 | $0.00006 | $0.00094 |
Grade A, and why
jj 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.
How it starts
The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.
jj
Use jj for version control when a repository has a .jj/ directory or jj status succeeds.
jj status
Core Model
- There is no staging area; commands operate on the current change or selected revisions.
- The working copy is a mutable commit/change. Use
jj describeto set its message. - Change IDs are stable across rewrites; commit IDs change when contents or metadata change.
- Most history edits are safe because jj records operations in the operation log.
Inspect State
Start with these read-only commands:
jj status
jj log --limit 20
jj diff --git
Inspect a specific revision:
jj show <revset>
jj evolog -r <revset>
Useful revsets:
@: current working-copy commit@-: parent of the working-copy commit::@: ancestors of the working-copy commit@::: descendants of the working-copy committrunk(): repository trunk/main baselinemine(): changes authored by the current userconflicted(): changes with conflictsmutable(): changes that can be rewritten
Quote revsets in shell commands when they contain special characters:
jj log -r 'trunk()..@'
Make Commits
Describe the current change before creating a new one:
jj describe -m "Explain why this change exists"
jj new
Create a new change from a specific parent:
jj new <revset>
Prefer small, atomic changes. If the working copy mixes concerns, split it before describing or submitting.
jj desc is the common shorthand for jj describe; use either form consistently with nearby docs or commands.
Refine History
Move selected changes from the working copy into its parent:
jj squash
Absorb modifications into matching mutable ancestors:
jj absorb
Split a mixed change:
jj split
Split whole files or filesets non-interactively by passing paths and a message:
jj split -r @ path/to/file1 path/to/file2 -m "Move focused changes into their own commit"
jj split -r @ 'glob:src/**/*.rs' -m "Update Rust sources"
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.
- 2d ago First seen · 174 lines · 55 tokens per session scan A f4ab7067bed6
jj is a skill published in the GitHub repository adampoit/ai (2 stars, last pushed 7d ago), licensed MIT. It adds 55 tokens to every session and 943 once invoked, about $0.0003 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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