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/appsvortex/arness/arn-code-taskifynpx skills add AppsVortex/arness --skill arn-code-taskifygit clone --depth 1 https://github.com/AppsVortex/arnessWhat 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 | $0.00081 | $0.01654 |
| Opus 5 | $0.00041 | $0.00827 |
| Sonnet 5 | $0.00016 | $0.00331 |
| Haiku 4.5 | $0.00008 | $0.00165 |
Grade A, and why
arn-code-taskify 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 — 172 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Arness Taskify
Convert a project's TASKS.md into a Claude Code task list with dependency management. Reads the structured task definitions created by arn-code-save-plan, creates Claude Code tasks via TaskCreate, and wires up the dependency graph via TaskUpdate.
This skill does NOT execute tasks or assign them to agents — it only creates the task list. Execution happens after the task list is created, either manually or through Claude Code's task system.
Workflow
Step 1: Load the Project
Read the project's CLAUDE.md and look for a ## Arness section. Extract:
- Plans directory — base path where project plans are saved
If ## Arness is not found: inform the user: "Arness is not configured for this project yet. Run /arn-planning to get started — it will set everything up automatically." Do not proceed.
Deferred Task List Setup:
Check for Task list ID in ## Arness config. If present: verify CLAUDE_CODE_TASK_LIST_ID environment variable is set and matches. If not set or mismatched, warn: "Task list ID is configured as <id> in ## Arness but CLAUDE_CODE_TASK_LIST_ID is not set in the current environment. Tasks may not persist across sessions. Verify .claude/settings.json contains the correct env setting."
If absent:
Ask (using AskUserQuestion):
"Persistent task lists are not configured. Would you like to enable them? (Recommended — tasks survive across sessions)"
- Yes (Recommended) — Auto-generate ID from project directory name
- Yes, with custom ID — Specify the task list ID
- No — Keep tasks session-scoped
If Yes: derive ID (slugify project directory name or use custom ID), write to .claude/settings.json (create if needed, preserve existing env vars), add Task list ID to ## Arness config. Inform: "Persistent task list configured."
If No: proceed without persistence. Inform (once): "Tasks will be session-scoped. Enable persistence anytime with /arn-code-taskify."
Ask the user for PROJECT_NAME if not provided in the conversation.
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 · 172 lines · 81 tokens per session scan A 530273e7b1db
arn-code-taskify is a skill published in the GitHub repository AppsVortex/arness (33 stars, last pushed 1mo ago), licensed MIT. It adds 81 tokens to every session and 1,654 once invoked, about $0.0004 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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