Borrowing it
Nothing to install: this file belongs to antopolskiy/kanban-md. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/antopolskiy/kanban-md/main/.agents/skills/kanban-based-development/SKILL.mdgit clone --depth 1 https://github.com/antopolskiy/kanban-mdWrote 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/antopolskiy/kanban-md/kanban-based-development)<a href="https://agentmods.dev/skills/antopolskiy/kanban-md/kanban-based-development"><img src="https://agentmods.dev/badge/skills/antopolskiy/kanban-md/kanban-based-development/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/antopolskiy/kanban-md/kanban-based-development"><img src="https://agentmods.dev/badge/skills/antopolskiy/kanban-md/kanban-based-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00068 | $0.02251 |
| Opus 5.5 | $0.00027 | $0.00900 |
| Sonnet 5.5 | $0.00014 | $0.00450 |
| Haiku 4.5 | $0.00007 | $0.00225 |
Grade A, and why
kanban-based-development 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 23d 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 — 270 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Kanban-Based Development
Autonomous, parallel-safe development using kanban-md to coordinate work on a shared board.
Claims expose task ownership and reduce duplicate work when participants follow
the protocol; review is the waiting room (handoff, user action, merge, decisions).
Multi-Agent Environment
This board is shared. Multiple agents and humans may be working on it simultaneously. You are NOT the only one reading or modifying tasks. This means:
- Another agent may claim a task between the time you list it and try to pick it.
- Tasks you saw as available a moment ago may no longer be available.
The claim mechanic is the coordination primitive. It lets cooperating agents exclude work already owned by someone else. You MUST claim a task before starting any work on it, and you MUST only pick unclaimed tasks. Claims are leases rather than a security or distributed-transaction boundary; ignoring the protocol can still cause duplicate work and merge conflicts.
Non-Negotiables
- Claim before you change anything. No task edits, no code changes.
- One active task per agent. Keep at most one task in
in-progressfor your agent session. - Never steal a live claim. If it's claimed, pick something else.
- Never release someone else’s claim. Only use
edit --releasefor your own work (or when the user explicitly asks). - Always leave a handoff. Before you park a task, write a short update in the body so someone else can continue.
- Refresh claims to avoid timeout. If the task might take longer than
claim_timeout, periodically renew your claim:kanban-md edit <ID> --claim <agent>.
Board Home vs Worktrees (simple rule)
- Always run
kanban-mdfrom board home (the canonical repo directory that owns the shared board). - Always do code changes in a task worktree. Never edit code in board home.
- If the board is git-tracked, commit board changes on
mainas a separate commit after the task is merged and moved todone.
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.
- 23d ago Changed · +5 lines 7c367489c3d7
- 2mo ago First seen · 265 lines · 68 tokens per session scan A f2a40ae9b4fc
kanban-based-development is a skill published in the GitHub repository antopolskiy/kanban-md (226 stars, last pushed 24d ago), licensed MIT. It adds 68 tokens to every session and 2,251 once invoked, about $0.0003 per session on Opus 5.5. 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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