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sprint-loop

sprint-loop is a skill for Claude Code, Codex from crussella0129/Animus_Sprint_Loops. It costs 54 tokens per session (197 once invoked), scanned A, original, MIT.

Runtime files and schemas for the Book v2 Sprint Loops workflow, an Antigravity process for managing work through structured project records.

In plain words
What is it for?
Use them only when running or resuming a Sprint Loop, including creating Book artifacts and storing version-two state in a project's docs folder.
Why use it?
They keep the workflow's scripts, data formats, and durable project state consistent instead of creating incompatible records.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 13repo 5d ago A scan 54 tokens original MIT

Good fit Use them only when running or resuming a Sprint Loop, including creating Book artifacts and storing version-two state in a project's docs folder.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/crussella0129/animus_sprint_loops/sprint-loop
View source ↗ crussella0129/Animus_Sprint_Loops
Install

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.

Any agent
npx skills add crussella0129/Animus_Sprint_Loops --skill sprint-loop
Clone the repo
git clone --depth 1 https://github.com/crussella0129/Animus_Sprint_Loops

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for sprint-loop

README.md
[![agentmods](https://agentmods.dev/badge/skills/crussella0129/animus_sprint_loops/sprint-loop/github.svg)](https://agentmods.dev/skills/crussella0129/animus_sprint_loops/sprint-loop)
Your own site
<a href="https://agentmods.dev/skills/crussella0129/animus_sprint_loops/sprint-loop"><img src="https://agentmods.dev/badge/skills/crussella0129/animus_sprint_loops/sprint-loop/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.

agentmods 80×15 button for sprint-loop

Your own site · 80×15
<a href="https://agentmods.dev/skills/crussella0129/animus_sprint_loops/sprint-loop"><img src="https://agentmods.dev/badge/skills/crussella0129/animus_sprint_loops/sprint-loop.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 197 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00054 $0.00197
Opus 5 $0.00027 $0.00098
Sonnet 5 $0.00011 $0.00039
Haiku 4.5 $0.00005 $0.00020

Measured 10d ago against content hash 7984f8f5a344, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

sprint-loop 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.

The scan reads SKILL.md. This mod also ships 35 executable files (scripts/abort-sprint.sh, scripts/book-paths.sh, scripts/book-routing.test.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

antigravity-ide/skills/sprint-loop/SKILL.md · 17 lines

What it actually says

Sprint Loops runtime resources

This directory is the Antigravity workflow's <skill-root>. The installed global_workflows/sprint-loops.md file owns adapter routing and native-artifact synchronization; do not recreate a second protocol here.

When this skill is directly activated for explicit Sprint Loop intent, load the corresponding installed sprint-loops global workflow and follow it with this directory as <skill-root>. Run scripts from the target project root. Use schemas/ when authoring Book artifacts, and write durable state only to the Book schema version 2 under the target project's docs/ directory.

Files

What ships with it

45 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.

Changes

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.

  1. 10d ago First seen · 17 lines · 54 tokens per session scan A 7984f8f5a344

Subscribe to this mod's changes

sprint-loop is a skill published in the GitHub repository crussella0129/Animus_Sprint_Loops (13 stars, last pushed 5d ago), licensed MIT. It adds 54 tokens to every session and 197 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.

Project management
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