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.
git clone --depth 1 https://github.com/David405/harness-kitWrote 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/rules/david405/harness-kit/new-work-new-branch)<a href="https://agentmods.dev/rules/david405/harness-kit/new-work-new-branch"><img src="https://agentmods.dev/badge/rules/david405/harness-kit/new-work-new-branch/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/rules/david405/harness-kit/new-work-new-branch"><img src="https://agentmods.dev/badge/rules/david405/harness-kit/new-work-new-branch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00188 | $0.00188 |
| Opus 5.5 | $0.00075 | $0.00075 |
| Sonnet 5.5 | $0.00038 | $0.00038 |
| Haiku 4.5 | $0.00019 | $0.00019 |
Grade A, and why
new-work-new-branch 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 2mo 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
New work goes on a new branch
Never implement on the default branch.
- Check the current branch and whether this work belongs there.
- Propose a branch name and base.
- Stop and ask: "Confirm feature branch
<name>(yes, or give another name)." Do not create or switch branches until the human answers. - Do not pile unrelated work onto an in-flight branch.
- After approval, create the branch. Do not commit until the human explicitly asks (e.g. "commit", "commit and push").
- Tell the human which branch is active when execution starts.
Name from the contract or ticket id when one exists; otherwise short kebab-case scope.
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.
- 2mo ago First seen · 20 lines · 188 tokens per session scan A 2eb092b44160
new-work-new-branch is a cursor rule published in the GitHub repository David405/harness-kit (2 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 188 tokens to every session, about $0.0008 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 2026-08-31.
Other cursor rules, from other repositories
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iris
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git-workflow
Rules for git operations, commit strategy, and GitHub CLI usage.
release-checklist
What to update with each code change or version release.
git-workflow
Git commit format and PR process - conventional commits.
branching-merging-strategy
This is a set of instructions to the AI Assistant for branching and merging strategy.