Borrowing it
Nothing to install: this file belongs to talayash/agentrium. 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/talayash/agentrium/master/.claude/commands/feature-development-backend-frontend.mdgit clone --depth 1 https://github.com/talayash/agentriumWrote 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/talayash/agentrium/feature-development-backend-frontend)<a href="https://agentmods.dev/commands/talayash/agentrium/feature-development-backend-frontend"><img src="https://agentmods.dev/badge/commands/talayash/agentrium/feature-development-backend-frontend/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/commands/talayash/agentrium/feature-development-backend-frontend"><img src="https://agentmods.dev/badge/commands/talayash/agentrium/feature-development-backend-frontend.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 | $0.00021 | $0.00320 |
| Opus 5.5 | $0.00008 | $0.00128 |
| Sonnet 5.5 | $0.00004 | $0.00064 |
| Haiku 4.5 | $0.00002 | $0.00032 |
Grade A, and why
feature-development-backend-frontend 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 1mo 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
/feature-development-backend-frontend
Use this workflow when working on feature-development-backend-frontend in agentrium.
Goal
Implements a new feature that requires both backend (Rust/Tauri) and frontend (React/TS) changes, including new components, hooks, and store updates.
Common Files
src-tauri/src/commands.rssrc-tauri/src/database.rssrc-tauri/src/main.rssrc-tauri/tauri.conf.jsonsrc/App.tsxsrc/components/*.tsx
Suggested Sequence
- Understand the current state and failure mode before editing.
- Make the smallest coherent change that satisfies the workflow goal.
- Run the most relevant verification for touched files.
- Summarize what changed and what still needs review.
Typical Commit Signals
- Modify or add Rust backend files (src-tauri/src/commands.rs, database.rs, main.rs, etc.)
- Update or add frontend React components in src/components/
- Update or add hooks in src/hooks/
- Update or add store files in src/store/
- Update src/App.tsx to wire up new UI or logic
Notes
- Treat this as a scaffold, not a hard-coded script.
- Update the command if the workflow evolves materially.
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.
- 1mo ago Changed · -1 tokens per session 4654edbb10be
- 1mo ago First seen · 42 lines · 22 tokens per session scan A f8502745a76f
feature-development-backend-frontend is a command published in the GitHub repository talayash/agentrium (46 stars, last pushed 2d ago), licensed MIT. It adds 21 tokens to every session and 320 once invoked, about $0.0001 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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