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cherrypick: Skill for Claude Code

.agents/skills/working-on-backend/SKILL.md

working-on-backend is a skill for Claude Code, Codex from yojo-art/cherrypick. It costs 46 tokens per session (123 once invoked), scanned A, original, AGPL-3.0.

A set of instructions for working on Misskey's backend code, including API endpoints, server services, database entities, migrations, tests, and related generated code.

In plain words
What is it for?
It helps edit and validate code in `packages/backend/`, including REST APIs, NestJS modules, TypeORM entities, migrations, backend tests, and misskey-js generation.
Why use it?
It tells the coding agent when these backend-specific rules apply, reducing the chance of using the wrong checks or missing related changes.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is yojo-art/cherrypick's own configuration. It tells Claude Code and Codex how to work on cherrypick itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything cherrypick configures →

not rated 21repo 3d ago A scan 46 tokens AGPL-3.0
View source ↗ yojo-art/cherrypick xn--vusz0j.art
Reuse

Borrowing it

Nothing to install: this file belongs to yojo-art/cherrypick. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/yojo-art/cherrypick/develop/.agents/skills/working-on-backend/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/yojo-art/cherrypick

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 working-on-backend

README.md
[![agentmods](https://agentmods.dev/badge/skills/yojo-art/cherrypick/working-on-backend/github.svg)](https://agentmods.dev/skills/yojo-art/cherrypick/working-on-backend)
Your own site
<a href="https://agentmods.dev/skills/yojo-art/cherrypick/working-on-backend"><img src="https://agentmods.dev/badge/skills/yojo-art/cherrypick/working-on-backend/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 working-on-backend

Your own site · 80×15
<a href="https://agentmods.dev/skills/yojo-art/cherrypick/working-on-backend"><img src="https://agentmods.dev/badge/skills/yojo-art/cherrypick/working-on-backend.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 123 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 $0.00046 $0.00123
Opus 5.5 $0.00018 $0.00049
Sonnet 5.5 $0.00009 $0.00025
Haiku 4.5 $0.00005 $0.00012

Measured yesterday against content hash 61964838bd6e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

working-on-backend 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 yesterday.

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.

.agents/skills/working-on-backend/SKILL.md · 11 lines

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.

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. yesterday First seen · 11 lines · 46 tokens per session scan A 61964838bd6e

Subscribe to this mod's changes

working-on-backend is a skill published in the GitHub repository yojo-art/cherrypick (21 stars, last pushed 3d ago), licensed AGPL-3.0. It adds 46 tokens to every session and 123 once invoked, about $0.0002 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 2026-11-07.

Backend and APIsDatabases
Related

working-on-backend compared with skills from other repositories

working-on-backend next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
working-on-backendyojo-art/cherrypickSkill213d agoAGPL-3.0A46Claude Code, Codex
event-store-designwshobson/agentsSkill42ktodayMITA33Claude Code
platform-custom-field-generateforcedotcom/sf-skillsSkill1.2k2d agoApache-2.0A139Claude Code
field-service-sobject-create-configureforcedotcom/sf-skillsSkill1.2k2d agoApache-2.0A74Claude Code
durable-objectsfcakyon/claude-codex-settingsSkill1.2ktodayApache-2.0A22Claude Code
nornicdb-grpcorneryd/NornicDBSkill924todayMITA98Claude Code, Codex
nw-ddd-eventsourcingnWave-ai/nWaveSkill633yesterdayMITA38Claude Code