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 commands/ngerakines/jd/setup-systemgit clone --depth 1 https://github.com/ngerakines/jdWhat 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 | $0.00016 | $0.00334 |
| Opus 5 | $0.00008 | $0.00167 |
| Sonnet 5 | $0.00003 | $0.00067 |
| Haiku 4.5 | $0.00002 | $0.00033 |
Grade A, and why
setup-system 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.
What it actually says
Set Up a Johnny.Decimal System
Create a new Johnny.Decimal system from scratch — folders, standard zeros, and initial JDex.
Arguments
No required arguments. The command will walk the user through an interactive setup process.
Workflow
- Ask whether this is a single-system or multi-system setup.
- Gather system identity: code (if multi-system), name, and root location.
- Define areas: Walk through area definitions (max 10 including 00-09).
- Define categories: For each area, define categories (max 10 per area).
- Define initial IDs: Optionally pre-create ID folders within categories.
- Create structure: Build all folders on disk.
- Generate JDex: Write the complete index at
00.00 JDex.md. - Initialize files: Create
00.02 Tasks.mdand00.03 Processing log.md. - Verify: Display the complete folder tree for user review.
Templates
Offer starting templates for common system types:
- Personal life: Home, family, money, health, projects, travel, hobbies
- Work: System/employment, primary work domain, career, visibility
- Child/dependent: Identity, school, health, activities
Examples
/jd:setup-system
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 · 42 lines · 16 tokens per session scan A 4df478b16d75
setup-system is a command published in the GitHub repository ngerakines/jd (7 stars, last pushed 6mo ago), licensed Apache-2.0. It adds 16 tokens to every session and 334 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 2026-08-31.
Other commands, from other repositories
git
Git operations with intelligent commit messages and workflow optimization.
checklist
Generate a custom checklist for the current feature based on user requirements.
clarify
Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification questions and encoding answers back into the spec.
specify
Create or update the feature specification from a natural language feature description.
analyze
Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation.
constitution
Create or update the project constitution from interactive or provided principle inputs.