Borrowing it
Nothing to install: this file belongs to Cratis/VerticalSlices. 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/Cratis/VerticalSlices/main/.claude/commands/new-feature.mdgit clone --depth 1 https://github.com/Cratis/VerticalSlicesWrote 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/commands/cratis/verticalslices/new-feature)<a href="https://agentmods.dev/commands/cratis/verticalslices/new-feature"><img src="https://agentmods.dev/badge/commands/cratis/verticalslices/new-feature.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.00009 |
| Opus 5 | $0.00000 | $0.00005 |
| Sonnet 5 | $0.00000 | $0.00002 |
| Haiku 4.5 | $0.00000 | $0.00001 |
Grade A, and why
new-feature 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.
This is a copy
100% identical to new-feature — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
../../.ai/prompts/new-feature.prompt.md
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 · 1 lines · 0 tokens per session scan A c60e5f26ea93
new-feature is a command published in the GitHub repository Cratis/VerticalSlices (2 stars, last pushed 3d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 9 tokens. A static security scan graded it A with 0 findings. It is 100% identical to new-feature, differing in 0 lines, and is treated as a copy.
Other commands, from other repositories
add-business-rule
../../.ai/prompts/add-business-rule.prompt.md.
new-vertical-slice
../../.ai/prompts/new-vertical-slice.prompt.md.
write-documentation
../../.ai/prompts/write-documentation.prompt.md.
add-concept
../../.ai/prompts/add-concept.prompt.md.
add-ef-migration
../../.ai/prompts/add-ef-migration.prompt.md.
add-projection
../../.ai/prompts/add-projection.prompt.md.