Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add Roxabi/roxabi-plugins/plugin install dev-coreWrote 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/roxabi/roxabi-plugins/dev-checkup)<a href="https://agentmods.dev/skills/roxabi/roxabi-plugins/dev-checkup"><img src="https://agentmods.dev/badge/skills/roxabi/roxabi-plugins/dev-checkup/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/roxabi/roxabi-plugins/dev-checkup"><img src="https://agentmods.dev/badge/skills/roxabi/roxabi-plugins/dev-checkup.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 | $0.00030 | $0.00338 |
| Opus 5.5 | $0.00012 | $0.00135 |
| Sonnet 5.5 | $0.00006 | $0.00068 |
| Haiku 4.5 | $0.00003 | $0.00034 |
Grade A, and why
R-dev-checkup 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 1mo 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 AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
17 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.
- __tests__/branch-protection-context.integration.test.ts 6.4 KB runs code
- __tests__/dead-gate.integration.test.ts 50 KB runs code
- __tests__/dependabot-cooldown.integration.test.ts 9.0 KB runs code
- __tests__/doctor.integration.test.ts 10 KB runs code
- __tests__/lefthook-persist.test.ts 3.4 KB runs code
- __tests__/pull-request-target.test.ts 6.3 KB runs code
- __tests__/security-baseline-checks.integration.test.ts 6.9 KB runs code
- __tests__/workflow-drift.test.ts 3.3 KB runs code
- cookbooks/devcore-checks.md 4.0 KB
- cookbooks/infra-checks.md 4.2 KB
- cookbooks/stack-checks.md 9.7 KB
- doctor-github.ts 53 KB runs code
- doctor-local.ts 22 KB runs code
- doctor-shared.ts 5.3 KB runs code
- doctor.ts 2.0 KB runs code
- README.md 1.8 KB
- workflow-drift.ts 4.4 KB runs code
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.
- 1mo ago Changed 69d5939428a5
- 1mo ago Changed · +1 tokens per session 95a62a1d1693
- 1mo ago First seen · 34 lines · 29 tokens per session scan A 7d576e7c649d
R-dev-checkup is a skill published in the GitHub repository Roxabi/roxabi-plugins (9 stars, last pushed today), licensed AGPL-3.0. It adds 30 tokens to every session and 338 once invoked, about $0.0001 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 2026-08-31.
Other skills, from other repositories
release
Cut and maintain Observal release branches, prepare alpha, beta, RC, stable, and patch releases, backport merged main PRs, inspect release status, verify published artifacts, and recover failed release operations. Use for Observal maintainer release tasks and release-process changes, not for installing or upgrading an…
swarm-migrate
Cross-repo migration swarm — one coordinator + N parallel subagents (one per target repo) that apply the same transformation, open PRs, wait for CI, and report back to a shared JSON ledger. Coordinator handles topology, conflict auto-rebase, and stop-on-novel-failure. Use when bumping a shared dependency, rolling out…
ship
Push, open a PR, and watch CI; land mode merges and cleans branches. Triggers "ship it", "create PR", "babysit CI", "land it", "fix CI and merge".
zb-release-pipeline
Generate a GitHub Actions pipeline that builds a zb (Zero Dependencies Builder) project and publishes a GitHub Release with the produced JAR. Use whenever the user wants CI/CD, a build pipeline, a release workflow, or GitHub Actions for a zb-based Java project — phrases like "set up GitHub Actions for this zb…
dpf-local-merge-ci-before-push
Use before pushing or opening a DPF PR when a branch needs local merged-code verification.
hatch3r-release
Cuts a release with version bump, changelog, tagging, and deploy verification. Use when preparing a release, cutting a version, or deploying to production.