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 developer-overheid-nl/skills-developer-overheid-nl --skill don-leidraadgit clone --depth 1 https://github.com/developer-overheid-nl/skills-developer-overheid-nlWrote 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/developer-overheid-nl/skills-developer-overheid-nl/don-leidraad)<a href="https://agentmods.dev/skills/developer-overheid-nl/skills-developer-overheid-nl/don-leidraad"><img src="https://agentmods.dev/badge/skills/developer-overheid-nl/skills-developer-overheid-nl/don-leidraad/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/developer-overheid-nl/skills-developer-overheid-nl/don-leidraad"><img src="https://agentmods.dev/badge/skills/developer-overheid-nl/skills-developer-overheid-nl/don-leidraad.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 | $0.00037 | $0.00716 |
| Opus 5 | $0.00018 | $0.00358 |
| Sonnet 5 | $0.00007 | $0.00143 |
| Haiku 4.5 | $0.00004 | $0.00072 |
Grade A, and why
don-leidraad 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.
The source is not reproduced here
Licensed EUPL-1.2
The repository is licensed EUPL-1.2, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
24 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- references/agile/index.md 4.6 KB
- references/behoefte-gebruiker/index.md 4.2 KB
- references/behoefte-gebruiker/richtlijn-niet-functionele-eisen-identificeren.md 6.6 KB
- references/cloud/index.md 3.7 KB
- references/correct-gebruik-data/index.md 5.4 KB
- references/duurzaamheid/index.md 4.8 KB
- references/duurzaamheid/richtlijn-arch-keuzes.md 4.3 KB
- references/duurzaamheid/richtlijn-geautomatiseerd-testen.md 8.6 KB
- references/hergebruik/index.md 4.5 KB
- references/hergebruik/richtlijn-onboarding.md 5.3 KB
- references/hergebruik/richtlijn-software-overdragen.md 5.8 KB
- references/index.md 2.2 KB
- references/inkoopstrategie/index.md 3.5 KB
- references/integreer/index.md 3.5 KB
- references/open-source/index.md 5.1 KB
- references/open-source/richtlijn-repository-policy.md 4.3 KB
- references/open-standaarden/index.md 4.4 KB
- references/privacy/bsn.md 5.0 KB
- references/privacy/index.md 4.1 KB
- references/richtlijnsjabloon-v1.md 12 KB
- references/security/index.md 4.8 KB
- references/security/richtlijn-applicatie-security-tools.md 3.9 KB
- references/security/richtlijn-pkioverheid.md 6.4 KB
- references/toegankelijk-en-inclusief/index.md 3.9 KB
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 · 95 lines · 37 tokens per session scan A a1525c49d1d3
don-leidraad is a skill published in the GitHub repository developer-overheid-nl/skills-developer-overheid-nl (11 stars, last pushed 3mo ago), licensed EUPL-1.2. It adds 37 tokens to every session and 716 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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