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 skills add PetriLahdelma/project-spine --skill project-spine-templategit clone --depth 1 https://github.com/PetriLahdelma/project-spineWrote 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/petrilahdelma/project-spine/project-spine-template)<a href="https://agentmods.dev/skills/petrilahdelma/project-spine/project-spine-template"><img src="https://agentmods.dev/badge/skills/petrilahdelma/project-spine/project-spine-template/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/petrilahdelma/project-spine/project-spine-template"><img src="https://agentmods.dev/badge/skills/petrilahdelma/project-spine/project-spine-template.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 | $0.00066 | $0.00722 |
| Opus 5 | $0.00033 | $0.00361 |
| Sonnet 5 | $0.00013 | $0.00144 |
| Haiku 4.5 | $0.00007 | $0.00072 |
Grade A, and why
project-spine-template 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 11d 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.
How it starts
The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Template save / apply flow
Goal: reuse a team's agreed-upon project structure (brief scaffold + design rules + compile-time contributions) across client projects.
Template sources, priority order
Project Spine resolves templates from these roots (highest priority first):
- Project-local —
./.project-spine-templates/<name>/committed to the current repo. - User-local —
~/.project-spine/templates/<name>/on this machine. - Bundled —
saas-marketing,app-dashboard,design-system,docs-portal,api-service, andmonorepoship with the CLI.
Same name in a higher tier overrides lower tiers.
Flow A — apply an existing template to a new project
spine template list
Shows all templates reachable from this shell. The [source] column tells the user where each one comes from.
spine init --template <name>
Scaffolds brief.md from the template's starter content. Then follow project-spine-kickoff from Step 3.
Flow B — save the current project as a template
Prerequisite: the user already has a brief.md and ran spine compile at least once. The compiled .project-spine/spine.json is used to derive the template's contributes block automatically.
spine template save \
--name my-agency-saas \
--title "My agency SaaS starter" \
--description "Our marketing site template (Acme Inc.)" \
--location user
--location options:
user(default) — saves to~/.project-spine/templates/<name>/; follows you across projects on this machine.project— saves to./.project-spine-templates/<name>/; commits to the repo, shared via VCS.
When to recommend saving as project-local vs user-local
Save project-local if:
- The template represents a shared agency convention
- Multiple teammates will use it across client projects
- The brief scaffold / design rules include decisions the team has consensus on
Save user-local if:
- It's a personal preference (your favorite starter)
- You're experimenting with a template before committing the team to it
- The team hasn't set up a workspace yet
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.
- 11d ago First seen · 74 lines · 66 tokens per session scan A f1633233d4c1
project-spine-template is a skill published in the GitHub repository PetriLahdelma/project-spine (2 stars, last pushed 1mo ago), licensed MIT. It adds 66 tokens to every session and 722 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 2026-08-31.
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