Borrowing it
Nothing to install: this file belongs to Hackbyrd/orbital-express. 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/Hackbyrd/orbital-express/main/.claude/skills/sync-docs/SKILL.mdgit clone --depth 1 https://github.com/Hackbyrd/orbital-expressWrote 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/hackbyrd/orbital-express/sync-docs)<a href="https://agentmods.dev/skills/hackbyrd/orbital-express/sync-docs"><img src="https://agentmods.dev/badge/skills/hackbyrd/orbital-express/sync-docs/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/hackbyrd/orbital-express/sync-docs"><img src="https://agentmods.dev/badge/skills/hackbyrd/orbital-express/sync-docs.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 | $0.00079 | $0.01473 |
| Opus 5.5 | $0.00032 | $0.00589 |
| Sonnet 5.5 | $0.00016 | $0.00295 |
| Haiku 4.5 | $0.00008 | $0.00147 |
Grade A, and why
sync-docs 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.
How it starts
The opening of the file, as written. The whole thing — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Keep the documentation in sync
This project documents the same conventions in several places, for different audiences. They must agree. Whenever you change one, you are responsible for propagating the change to every other surface that covers the same thing — in the same unit of work, not "later." A convention that says one thing in the README and another in a skill is worse than no docs.
The documentation surfaces (the canonical set)
| Surface | Audience / purpose |
|---|---|
documentation.html |
The big Stripe-style single-page onboarding site for humans. Deep, narrative, examples. |
README.md |
The full human onboarding doc in the repo. Deep explanations, kept in sync with documentation.html. |
docs/conventions.txt |
The terse, authoritative rulebook. When rules conflict, this wins — so it must always reflect the decision. |
AGENTS.md |
Canonical, tool-agnostic agent guide (Cursor/Codex/Copilot read this directly). Golden rules + skill index. |
CLAUDE.md |
Claude Code entry point — imports AGENTS.md; Claude-specific notes only. |
.claude/skills/*/SKILL.md |
Step-by-step playbooks an agent executes. The operational form of the conventions. |
database/schema.sql |
Documentation of every table (column-order / naming template at top). |
docs/*.md, docs/*.txt |
Topic docs (auth-migration, workflow, etc.). |
mcp/content/ + generated MCP bundle |
Downstream packaged framework knowledge. Regenerate with the repository's MCP bundler and verify no source/bundle drift whenever canonical docs or skills change. |
create-orbital-app templates (sibling repository) |
Downstream starter copies of framework files/docs/skills. Sync intentionally and run its template drift verification whenever canonical framework surfaces change. |
The rule
Editing one documentation surface is not complete until you have checked every other surface for the same content and updated the ones that need it.
This applies in both directions: change the README → check the HTML, conventions, AGENTS, and the relevant skill(s). Change a skill → check whether the rule it encodes also lives in the README/HTML/conventions/AGENTS. Etc.
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 · 60 lines · 79 tokens per session scan A 91b810a14cd5
sync-docs is a skill published in the GitHub repository Hackbyrd/orbital-express (15 stars, last pushed 2mo ago), licensed MIT. It adds 79 tokens to every session and 1,473 once invoked, about $0.0003 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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