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 skills/frostney/gocciascript/project-structurenpx skills add frostney/GocciaScript --skill project-structuregit clone --depth 1 https://github.com/frostney/GocciaScriptWhat 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 | $0.00052 | $0.00732 |
| Opus 5 | $0.00026 | $0.00366 |
| Sonnet 5 | $0.00010 | $0.00146 |
| Haiku 4.5 | $0.00005 | $0.00073 |
Grade A, and why
project-structure 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 3d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- project-structure — 98% identical, 2 lines differ
How it starts
The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Project structure
Apply only the roles and documents needed by the requested work. Preserve valid project conventions; surface a material restructuring choice before making it. Language and stack skills own language-specific commands and config.
Core layout
Name these roles according to the ecosystem:
- Root: user-facing
README.md, manifest, one canonical lockfile, agent context, optional contribution rules, and governance files. - Source: one conventional source root, organized by domain or namespace.
- Tests: unit tests co-located with source; end-to-end suites in one top-level project-owned location; add layer-specific tests only for delivered or regression-prone layers.
docs/: architecture, quick start, tooling, code style, and deployment.- Scripts: one-off automation in
scripts/,bin/, ortools/. - Generated output: one ignored build/output location.
- Optional: generator templates, static assets, and provisioned agent skills.
Tests must catch meaningful regressions. End-to-end coverage is the primary system-level net; unit tests cover public module behavior without duplicating the same assertion.
Governance
Projects on this style keep these canonical root files:
VISION.md: durable product and technical direction, including exclusions.DEFINITION_OF_READY.md: hard gate before implementation.DEFINITION_OF_DONE.md: hard gate before a change is called shippable.
In a multi-area repo, the nearest area-specific file wins. Link between governance, agent, contributor, and project docs instead of duplicating policy. Flag a missing governance file when a workflow requires it; do not invent a substitute.
Agent context
AGENTS.md is canonical. CLAUDE.md is a symlink to it, or contains only an
include plus genuine Claude-specific additions when symlinks are unavailable.
Never maintain divergent copies.
Keep the root AGENTS.md lightweight: briefly identify the repository, then
spend its context on non-obvious gotchas, exact commands, hard constraints, and
safety boundaries. Do not restate a file tree or conventions evident from the
repository.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 3d ago First seen · 82 lines · 52 tokens per session scan A fc734d88dd9d
project-structure is a skill published in the GitHub repository frostney/GocciaScript (20 stars, last pushed 6d ago), licensed MIT. It adds 52 tokens to every session and 732 once invoked, about $0.0003 per session on Opus 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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