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 Undertone0809/rudder --skill development-lifecycle-router-maintainergit clone --depth 1 https://github.com/Undertone0809/rudderWrote 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/undertone0809/rudder/development-lifecycle-router-maintainer)<a href="https://agentmods.dev/skills/undertone0809/rudder/development-lifecycle-router-maintainer"><img src="https://agentmods.dev/badge/skills/undertone0809/rudder/development-lifecycle-router-maintainer.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00057 | $0.02353 |
| Opus 5 | $0.00028 | $0.01177 |
| Sonnet 5 | $0.00011 | $0.00471 |
| Haiku 4.5 | $0.00006 | $0.00235 |
Grade A, and why
development-lifecycle-router-maintainer 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 8d 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 — 251 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Development Lifecycle Router Maintainer
Use this skill as a routing layer: choose the current lifecycle stage, name the exit bar, and hand off to the smallest capable maintainer skill or normal coding workflow.
The reason this skill exists is to prevent two expensive mistakes:
- jumping from a complaint into implementation before the correct stage is known
- calling a stage complete without the product proof or reviewer evidence that the user's request actually requires
Keep this file thin. Load the reference files below only when the current route needs them.
Reference Map
references/route-selection.md: stage classifier, narrow-skill routing, meta-request precedence, and skill-optimization boundaries.references/verification-review.md: verifier gates, terminal product proof, spawned reviewer policy, reviewer lenses, agent prompt templates, and evidence ledger.references/special-routes.md: recovery, component lab, performance benchmark, runtime/provider contracts, and hard real-local validation.references/handoff-git.md: git safety, final handoff shape, acceptance blockers, and common route templates.
Fast Start
Before editing files, running long checks, spawning reviewers, or committing:
- Inspect
git status --short --branch. - Classify the current stage.
- State the selected route and downstream owner in one concise update.
- Name the artifact or proof required to leave the current stage.
- For development work, state the full loop before editing:
implementation, writer checks, verifier, final reviewers, reconciliation, and
handoff. Development work enters
spawn-requiredmode by default; the user does not need to separately ask for subagents, review, or verification. - Decide which references are needed for this route and read only those.
For obvious narrow requests, do not expand a lifecycle plan. Say the route, load the narrow skill, and execute it.
Non-Use Gate
Use the narrow maintainer directly when all of these are true:
What ships with it
9 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.
- agents/adversarial-reviewer.md 1.4 KB
- agents/functional-reviewer.md 1.4 KB
- agents/heuristic-reviewer.md 1.5 KB
- agents/product-verifier.md 3.5 KB
- references/handoff-git.md 4.9 KB
- references/route-selection.md 5.5 KB
- references/runbook.md 11 KB
- references/special-routes.md 5.0 KB
- references/verification-review.md 15 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.
- 8d ago First seen · 251 lines · 57 tokens per session scan A ae2ca7f7494c
development-lifecycle-router-maintainer is a skill published in the GitHub repository Undertone0809/rudder (288 stars, last pushed today), licensed Apache-2.0. It adds 57 tokens to every session and 2,353 once invoked, about $0.0003 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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