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 zacharygcook/agent-skills --skill ralph-sprintgit clone --depth 1 https://github.com/zacharygcook/agent-skillsWrote 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/zacharygcook/agent-skills/ralph-sprint)<a href="https://agentmods.dev/skills/zacharygcook/agent-skills/ralph-sprint"><img src="https://agentmods.dev/badge/skills/zacharygcook/agent-skills/ralph-sprint/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/zacharygcook/agent-skills/ralph-sprint"><img src="https://agentmods.dev/badge/skills/zacharygcook/agent-skills/ralph-sprint.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 | $0.00063 | $0.00383 |
| Opus 5 | $0.00032 | $0.00192 |
| Sonnet 5 | $0.00013 | $0.00077 |
| Haiku 4.5 | $0.00006 | $0.00038 |
Grade A, and why
ralph-sprint 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.
What it actually says
Ralph Sprint
Prepare exactly one reviewable sprint and stop before execution.
- Read repository agent instructions, the durable
SPEC.mdor equivalent,.ralph/config.env, and all existing sprint state. - If the current sprint is incomplete or its hooks failed, repair or resume it instead of creating a competing sprint.
- Select the next dependency-ordered slice of the spec. Do not create speculative future sprint folders.
- Create or validate
README.md,IMPLEMENTATION_PLAN.md,relevant-specs.md,chunks.json,prompt.md, andSCRATCHPAD.mdunder.ralph/sprints/<number-name>/. Inprompt.md, refer to every sprint file with its repository-root-relative.ralph/sprints/<number-name>/...path because the harness starts at the repository or orchestration root. - Keep chunks sequential and bounded. Give each concrete acceptance criteria, accurate artifact paths, and repository ownership in multi-repo mode.
- Set
CURRENT_SPRINT, runjust validatewhen available, and repair every setup defect. - Summarize the goal, chunks, validation, risks, and operator review path. Do not run
just run.
When installed beside $ralph-loop, its references/spec-breakdown.md, references/sprint.md, and
references/chunks.md provide the complete shared contract. Preserve those invariants even when the
umbrella skill is unavailable.
What ships with it
2 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.
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 · 29 lines · 63 tokens per session scan A 2d413f71df27
ralph-sprint is a skill published in the GitHub repository zacharygcook/agent-skills (2 stars, last pushed 1mo ago), licensed MIT. It adds 63 tokens to every session and 383 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 2026-08-31.
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