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tracer-bullets

tracer-bullets is a skill for Claude Code from oakoss/agent-skills. It costs 73 tokens per session (862 once invoked), scanned A, original, no licence file.

A guide to building features as complete vertical slices, with each slice passing through the database, API, user interface, and tests. Each slice is checked before the next one is started.

In plain words
What is it for?
Use it to plan and implement CRUD features, multi-step flows, and work that spans several application layers.
Why use it?
It exposes integration problems early and keeps partially built features useful and verifiable.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

not rated 21repo +1 2mo ago A scan 73 tokens no licence

Good fit Use it to plan and implement CRUD features, multi-step flows, and work that spans several application layers.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/oakoss/agent-skills/tracer-bullets
View source ↗ oakoss/agent-skills
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 oakoss/agent-skills --skill tracer-bullets
Clone the repo
git clone --depth 1 https://github.com/oakoss/agent-skills

Made for: Claude Code.

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 tracer-bullets

README.md
[![agentmods](https://agentmods.dev/badge/skills/oakoss/agent-skills/tracer-bullets/github.svg)](https://agentmods.dev/skills/oakoss/agent-skills/tracer-bullets)
Your own site
<a href="https://agentmods.dev/skills/oakoss/agent-skills/tracer-bullets"><img src="https://agentmods.dev/badge/skills/oakoss/agent-skills/tracer-bullets/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 tracer-bullets

Your own site · 80×15
<a href="https://agentmods.dev/skills/oakoss/agent-skills/tracer-bullets"><img src="https://agentmods.dev/badge/skills/oakoss/agent-skills/tracer-bullets.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 862 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 unknown 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 $0.00073 $0.00862
Opus 5.5 $0.00029 $0.00345
Sonnet 5.5 $0.00015 $0.00172
Haiku 4.5 $0.00007 $0.00086

Measured 2mo ago against content hash d79f6eb7df6c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tracer-bullets 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 2mo 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.

skills/tracer-bullets/SKILL.md · 71 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 71 lines · 73 tokens per session scan A d79f6eb7df6c

Subscribe to this mod's changes

tracer-bullets is a skill published in the GitHub repository oakoss/agent-skills (21 stars, last pushed 2mo ago), with no licence file. It adds 73 tokens to every session and 862 once invoked, about $0.0003 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 2026-09-03.

PlanningProject management
Related

tracer-bullets compared with skills from other repositories

tracer-bullets next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
tracer-bulletsoakoss/agent-skillsSkill212mo agononeA73Claude Code
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code