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 instructions/vanillagreencom/kendex/skills-and-agentsgit clone --depth 1 https://github.com/vanillagreencom/kendexWrote 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/instructions/vanillagreencom/kendex/skills-and-agents)<a href="https://agentmods.dev/instructions/vanillagreencom/kendex/skills-and-agents"><img src="https://agentmods.dev/badge/instructions/vanillagreencom/kendex/skills-and-agents.svg" alt="Measured on agentmods" 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 | $0.00237 | $0.00237 |
| Opus 5 | $0.00118 | $0.00118 |
| Sonnet 5 | $0.00047 | $0.00047 |
| Haiku 4.5 | $0.00024 | $0.00024 |
Grade C, and why
kendex skills-and-agents.instructions.md scanned grade C with 1 finding 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 today.
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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- generated by bot-instructions 2.1.0 from kendex.toml, kendex-local.toml, .kendex-generated.json, SKILL.md, schemas/renders.md, AGENTS.md. Edit [bot-instructions] in the effective manifest or the spec copy, then re-r What it actually says
Follow skills/docs-writing/SKILL.md for always-loaded markdown and skills/code-quality/SKILL.md for mechanisms. Do not add defensive caveats, history, or editorial commentary to skill and agent instructions.
Issue citations are excluded from instruction-flow markdown. Reference schemas under skills/*/schemas/ can retain issue provenance.
tools/bash32-lint defines the Bash portability roster. The newer-Bash exception covers skills/linear/scripts, not its tests. New Bash constructs outside that exception can break supported runtimes.
The executable-bit step in .github/workflows/skill-tests.yml defines which script and test files require that bit. Preserve its sourced-library and control-file exceptions. Apply the requirement to new files in that step's scope.
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.
- today Changed · +7 lines · -2 tokens per session scan A → C f2c1540719e1
- yesterday Changed · -12 lines · -20 tokens per session 6611ef7d4ccd
- 6d ago First seen · 20 lines · 259 tokens per session scan A 248d10846ca5
kendex skills-and-agents.instructions.md is an instructions file published in the GitHub repository vanillagreencom/kendex (74 stars, last pushed today), licensed MIT. It adds 237 tokens to every session, about $0.0012 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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