Borrowing it
Nothing to install: this file belongs to vanillagreencom/kendex. 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/vanillagreencom/kendex/main/.github/instructions/skills-and-agents.instructions.mdgit 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/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/instructions/vanillagreencom/kendex/skills-and-agents"><img src="https://agentmods.dev/badge/instructions/vanillagreencom/kendex/skills-and-agents.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 | $0.00231 | $0.00231 |
| Opus 5.5 | $0.00092 | $0.00092 |
| Sonnet 5.5 | $0.00046 | $0.00046 |
| Haiku 4.5 | $0.00023 | $0.00023 |
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 21d 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.
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 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-render. 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.
- 21d ago Changed · -6 tokens per session b1b18cfec57c
- 22d ago Changed e66007e22908
- 23d ago Changed b1f2b5fcc7da
- 29d ago Changed eb11a3be920d
- 1mo ago Changed 097809e6c45d
- 1mo ago Changed 3325cea772a2
- 1mo ago Changed · +7 lines · -2 tokens per session scan A → C f2c1540719e1
- 1mo ago Changed · -12 lines · -20 tokens per session 6611ef7d4ccd
- 2mo 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 (87 stars, last pushed yesterday), licensed MIT. It adds 231 tokens to every session, about $0.0009 per session on Opus 5.5. 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.