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 commands/hktitan/cursor-best-practices/setup-new-featuregit clone --depth 1 https://github.com/HKTITAN/cursor-best-practicesWrote 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/hktitan/cursor-best-practices/setup-new-feature)<a href="https://agentmods.dev/commands/hktitan/cursor-best-practices/setup-new-feature"><img src="https://agentmods.dev/badge/commands/hktitan/cursor-best-practices/setup-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 | $0.00276 |
| Opus 5 | $0.00000 | $0.00138 |
| Sonnet 5 | $0.00000 | $0.00055 |
| Haiku 4.5 | $0.00000 | $0.00028 |
Grade A, and why
setup-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 6d 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
Help me set up a new feature. If you typed text after the command (e.g. /setup-new-feature auth or /setup-new-feature user notifications), use that as the feature name or short description.
Steps
-
Propose a minimal plan
- New files — modules, components, routes, tests.
- Key functions/modules — what each does and how they plug into the existing codebase.
- Integration points — existing APIs, state, DB, or UI to extend or call.
-
Identify relevant patterns
- Existing features (e.g. "follow the pattern in
auth/"),.cursor/rules, orAGENTS.md. - Stack conventions (e.g. React hooks, REST endpoints, repository pattern).
- Existing features (e.g. "follow the pattern in
-
Suggest implementation steps
- Create structure (files, folders) → implement → add tests → update docs (if applicable).
- Prefer incremental, testable steps rather than one big change.
Context
- Use @files or @folder if I've pointed to reference implementations.
- Prefer small, reviewable chunks. Run tests between steps when possible.
Apply project rules
Follow .cursor/rules or AGENTS.md (e.g. testing, structure, naming).
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.
- 6d ago First seen · 26 lines · 0 tokens per session scan A 4edfec49a331
setup-new-feature is a command published in the GitHub repository HKTITAN/cursor-best-practices (5 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 276 tokens. 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 commands, from other repositories
commit-msg
Cursor tooling: skills, rules, subagents.
handle-pr-comments
Fetch all PR comments, classify by severity, and present for user approval before acting.
self-review
Review only changed files in this branch Your primary goal is to provide valuable, trustworthy feedback while avoiding false positives and low-impact commentary.
create-pr
Commit changes and create a PR with proper formatting.
back-to-master-delete-branch
Cleanup current branch and switch to default branch with latest changes.
optimize-cursor-context
Analyze my Cursor base context and suggest optimizations.