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 Nodewarrior/spine --skill spine-scangit clone --depth 1 https://github.com/Nodewarrior/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/nodewarrior/spine/spine-scan)<a href="https://agentmods.dev/skills/nodewarrior/spine/spine-scan"><img src="https://agentmods.dev/badge/skills/nodewarrior/spine/spine-scan/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/nodewarrior/spine/spine-scan"><img src="https://agentmods.dev/badge/skills/nodewarrior/spine/spine-scan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00039 | $0.02672 |
| Opus 5 | $0.00019 | $0.01336 |
| Sonnet 5 | $0.00008 | $0.00534 |
| Haiku 4.5 | $0.00004 | $0.00267 |
Grade A, and why
spine-scan 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 9d 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 — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spine Scan — Session-Start Vault Scanner
Automatically scan the Spine vault for decay and coverage gaps. Auto-fixes low-risk issues, reports findings as a non-blocking banner.
Tier 3 Gate
Before doing anything, check if Tier 3 is enabled:
- Read
~/.spine/config.json - Check the
tier3field - If
tier3isfalseor missing, skip silently — do not scan, do not print a banner, do nothing.
This skill only runs when the user has opted into Tier 3 autonomous behavior.
Vault Path Resolution
Resolve the vault path using this config chain:
$SPINE_VAULT_PATHenvironment variable~/.spine/config.json→ read thevaultPathfield- Default:
~/Documents/SpineVault/
If no vault is found, or the vault directory doesn't exist, skip silently — no banner, no output contract, nothing. Not every repo uses Spine. The output contract is only emitted when the scan actually runs.
Detect Current Repo
basename "$(git remote get-url origin 2>/dev/null)" .git
Fall back to the current directory name if no git remote. If {vault}/{repo}/ doesn't exist, skip silently — this repo isn't tracked by Spine.
Phase 1: Auto-Fixes
Scan the vault for mechanical issues and fix them silently. Log every action to {vault}/.spine/curator-log.md.
Ensure {vault}/.spine/ directory exists before writing.
Conflict Guard
Before reading each file for auto-fix analysis, record its modification time and file size (size catches same-second edits on filesystems with only second-resolution timestamps). Before writing the fix back:
- Re-check mtime and size against the recorded values
- If either changed, skip the fix for that file and log:
**Skipped:** \{file}` — modified by another process during scan` - Proceed with the next file
This prevents overwriting concurrent edits from Obsidian, Obsidian Sync, or parallel sessions. The dual check (mtime + size) handles HFS+/ext4 second-resolution timestamps where a sub-second edit would otherwise be invisible.
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.
- 9d ago First seen · 220 lines · 39 tokens per session scan A 2eea6edb19ce
spine-scan is a skill published in the GitHub repository Nodewarrior/spine (22 stars, last pushed 14d ago), licensed MIT. It adds 39 tokens to every session and 2,672 once invoked, about $0.0002 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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