Borrowing it
Nothing to install: this file belongs to fqmyysjjd/agent-feed. 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/fqmyysjjd/agent-feed/main/.agents/skills/project-development/SKILL.mdgit clone --depth 1 https://github.com/fqmyysjjd/agent-feedWrote 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/skills/fqmyysjjd/agent-feed/project-development)<a href="https://agentmods.dev/skills/fqmyysjjd/agent-feed/project-development"><img src="https://agentmods.dev/badge/skills/fqmyysjjd/agent-feed/project-development/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/skills/fqmyysjjd/agent-feed/project-development"><img src="https://agentmods.dev/badge/skills/fqmyysjjd/agent-feed/project-development.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 | $0.00326 |
| Opus 5.5 | $0.00008 | $0.00130 |
| Sonnet 5.5 | $0.00004 | $0.00065 |
| Haiku 4.5 | $0.00002 | $0.00033 |
Grade A, and why
project-development 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
Project Development Skill
Required Use
Use this skill before writing or modifying code.
Required Reading
.agents/rules/context-loading.md.agents/rules/outcome-boundary.md.agents/skills/engineering-planning/SKILL.md.agents/project/architecture-boundaries.md.agents/rules/development-workflow.md.agents/rules/testing-gates.md.agents/project/project-structure.md.agents/rules/change-risk-gates.md.agents/domain/contracts.md
For milestone details, read .agents/project/milestones.md.
Workflow
- Recover the current task result boundary.
- Use
.agents/skills/engineering-planning/SKILL.mdto decide owner, reuse, placement, write set, boundaries, and verification before editing. - Fill the start checklist from
.agents/rules/development-workflow.md. - Confirm the design or task is concrete enough to implement without inventing missing decisions.
- Implement the smallest scoped change.
- Apply
.agents/rules/testing-gates.mdto choose verification evidence. - Use
.agents/skills/project-review/SKILL.mdfor post-change review. - Stop when the declared task boundary is satisfied.
- End through the Final Handoff Gate in
.agents/rules/session-state.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.
- 2mo ago First seen · 39 lines · 21 tokens per session scan A 33c22e57b88e
project-development is a skill published in the GitHub repository fqmyysjjd/agent-feed (4 stars, last pushed 5mo ago), licensed MIT. It adds 21 tokens to every session and 326 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 2026-08-31.
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