dunx: Skill for Claude Code

.claude/skills/whats-next/SKILL.md

whats-next is a skill for Claude Code from petarzarkov/dunx. It costs 92 tokens per session (837 once invoked), scanned A, original, MIT.

A skill that writes HANDOFF.md, a short file that records where work stopped so another session can resume it.

In plain words
What is it for?
Use it before clearing or compacting a session, at the end of a task block, or when the project needs a precise resume point based on docs/ROADMAP.md and docs/ARCHITECTURE.md.
Why use it?
It preserves completed work, rejected approaches, relevant file paths, and the next roadmap-based steps when a task or context window ends.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions subagents.

This is petarzarkov/dunx's own configuration. It tells Claude Code how to work on dunx itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything dunx configures →

Reuse

Borrowing it

Nothing to install: this file belongs to petarzarkov/dunx. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/petarzarkov/dunx/main/.claude/skills/whats-next/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/petarzarkov/dunx

Made for: Claude Code.

Wrote 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.

agentmods badge for whats-next

README.md
[![agentmods](https://agentmods.dev/badge/skills/petarzarkov/dunx/whats-next/github.svg)](https://agentmods.dev/skills/petarzarkov/dunx/whats-next)
Your own site
<a href="https://agentmods.dev/skills/petarzarkov/dunx/whats-next"><img src="https://agentmods.dev/badge/skills/petarzarkov/dunx/whats-next/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.

agentmods 80×15 button for whats-next

Your own site · 80×15
<a href="https://agentmods.dev/skills/petarzarkov/dunx/whats-next"><img src="https://agentmods.dev/badge/skills/petarzarkov/dunx/whats-next.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 92 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 837 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00092 $0.00837
Opus 5 $0.00046 $0.00418
Sonnet 5 $0.00018 $0.00167
Haiku 4.5 $0.00009 $0.00084

Measured 11d ago against content hash 3b270639c135, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

whats-next 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 11d 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.

.claude/skills/whats-next/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/whats-next

Produce HANDOFF.md at the repo root: everything needed to resume this work in a fresh session and nothing else. It will be read cold, by a session with no memory of this one. Optimise for that reader, not for a record of what happened.

Gather

One batch, then stop:

git status --short && git log --oneline -8

Read the Roadmap and Spikes to resolve sections of docs/ARCHITECTURE.md. That doc is the source of truth for what "next" means - the current phase's exit criteria are the next steps. Never invent a roadmap position from the conversation.

Add what only this session knows: what you actually changed, and what you tried that did not work.

If the session is thin on state - resumed, compacted, or you were handed a HANDOFF.md rather than doing the work - do not read packages into this thread to fill the gaps. Delegate one Explore subagent per unresolved exit criterion and ask each for a one-line verdict plus file:line. The exploration stays in their context window; only the verdict comes back.

Write

Overwrite HANDOFF.md with this shape. Omit a section that has no content - never write "N/A" or "none".

# HANDOFF - <YYYY-MM-DD>

**Roadmap:** Phase <n> - <name> · <met>/<total> exit criteria met
**Branch:** <branch> @ <short sha> · <clean | n files dirty>

## Done

- <objective> - <where it landed>

## Live files

- [path](path) - <what is half-finished in it>

## Rejected - do not retry

- <approach> - <what broke>

## Next

1. <exact command, or exact edit to an exact path>

## Open questions

- <question> - <what decides it>

Rules

  • Hard cap ~60 lines. This file is loaded at the start of the next session. Every line is a permanent tax on it.
  • Next steps are commands and edits, not intentions. "Add token() and inject() to packages/core/src/di/, resolving through a module-level currentInjector set around each new Klass()" - not "continue DI work".
  • Rejected is the highest-value section. It is the only content a fresh session cannot re-derive from the tree. Record the approach, the symptom, and the path it lives or lived in. Rejections already written down in docs/architecture/ belong there, not here - link, don't copy.
  • Paths as clickable relative markdown links.
  • If an exit criterion has become true, say so. If docs/ARCHITECTURE.md is stale, fix that doc - do not record the drift in HANDOFF.md.
  • No conversation summary, no restatement of the plan, no preamble.

Read the full file on GitHub · 91 lines

Changes

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.

  1. 11d ago First seen · 91 lines · 92 tokens per session scan A 3b270639c135

Subscribe to this mod's changes

whats-next is a skill published in the GitHub repository petarzarkov/dunx (116 stars, last pushed yesterday), licensed MIT. It adds 92 tokens to every session and 837 once invoked, about $0.0005 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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