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 thettwe/nyann --skill gen-dependency-updatergit clone --depth 1 https://github.com/thettwe/nyannWrote 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/thettwe/nyann/gen-dependency-updater)<a href="https://agentmods.dev/skills/thettwe/nyann/gen-dependency-updater"><img src="https://agentmods.dev/badge/skills/thettwe/nyann/gen-dependency-updater/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/thettwe/nyann/gen-dependency-updater"><img src="https://agentmods.dev/badge/skills/thettwe/nyann/gen-dependency-updater.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 | $0.01716 |
| Opus 5 | $0.00115 | $0.00858 |
| Sonnet 5 | $0.00046 | $0.00343 |
| Haiku 4.5 | $0.00023 | $0.00172 |
Grade A, and why
gen-dependency-updater 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 10d 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 — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.
gen-dependency-updater
Wraps bin/gen-dependency-updater.sh. Emits a Dependabot or Renovate
config; preview-by-default; idempotent on apply.
When to trigger
- User wants automated dependency PRs and doesn't already have either config wired up.
- User wants to migrate Dependabot ↔ Renovate.
- User wants to re-generate the config after upgrading nyann (the
template defaults shift with each
snapshot_version).
When NOT to trigger
- User wants to manually upgrade a specific dep — that's
npm install,pip install -U,cargo update, etc. - User wants help resolving a Dependabot/Renovate PR — read the PR diff with them; this skill is for config generation only.
- User is in a non-GitHub forge — Dependabot is GitHub-specific. Renovate runs anywhere but its app installation is out of scope for this skill.
Picking updater (when the user hasn't specified)
Default to dependabot when:
- The repo is on GitHub (which is nyann's
gh-integration assumption). - The user wants minimal moving parts (Dependabot is native to GH, no app to install).
Default to renovate when:
- The user mentions multi-platform forge support.
- The user wants advanced grouping / customization (Renovate's
package rules are richer than Dependabot's
groups). - The user is already a Renovate user on other repos.
When in doubt, ask:
"Dependabot is GitHub-native and zero-install — recommended for most. Renovate is more configurable but requires installing the Renovate GitHub App. Which do you want?"
Picking ecosystems
Read the StackDescriptor (from bin/detect-stack.sh) and map:
| Stack hint | Ecosystem(s) |
|---|---|
primary_language=typescript / javascript |
npm |
primary_language=python |
pip |
primary_language=go |
gomod |
primary_language=rust |
cargo |
primary_language=ruby |
bundler |
primary_language=php |
composer |
primary_language=java (Maven) |
maven |
primary_language=java (Gradle) / kotlin |
gradle |
primary_language=dart |
pub |
primary_language=csharp / dotnet |
nuget |
primary_language=elixir |
mix (v1.10+) |
primary_language=swift |
swift |
Dockerfile present |
docker (in addition to language ecosystem) |
.github/workflows/ present |
github-actions (always recommended) |
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.
- 10d ago First seen · 160 lines · 231 tokens per session scan A df21948ccde0
gen-dependency-updater is a skill published in the GitHub repository thettwe/nyann (6 stars, last pushed 11d ago), licensed MIT. It adds 231 tokens to every session and 1,716 once invoked, about $0.0012 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 2026-08-31.
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