Agent skill

Reskill

by FritzAndFriends in FritzAndFriends/SharpSite

Team-wide charter and history optimization through skill extraction

MITAuto-check passed

Install Reskill

skills CLI

$ npx skills add FritzAndFriends/SharpSite --skill reskill -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install FritzAndFriends/SharpSite reskill --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/FritzAndFriends/SharpSite.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.copilot/skills/reskill .claude/skills/reskill && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "reskill" agent skill from https://github.com/FritzAndFriends/SharpSite/tree/main/.copilot/skills/reskill into .claude/skills/reskill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reskill", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/FritzAndFriends/SharpSite/tree/main/.copilot/skills/reskill

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add FritzAndFriends/SharpSite --skill reskill -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install FritzAndFriends/SharpSite reskill --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/FritzAndFriends/SharpSite.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.copilot/skills/reskill .agents/skills/reskill && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "reskill" agent skill from https://github.com/FritzAndFriends/SharpSite/tree/main/.copilot/skills/reskill into .agents/skills/reskill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reskill", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add FritzAndFriends/SharpSite --skill reskill -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install FritzAndFriends/SharpSite reskill --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/FritzAndFriends/SharpSite.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.copilot/skills/reskill .cursor/skills/reskill && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "reskill" agent skill from https://github.com/FritzAndFriends/SharpSite/tree/main/.copilot/skills/reskill into .cursor/skills/reskill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reskill", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/FritzAndFriends/SharpSite.git --path .copilot/skills/reskill

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add FritzAndFriends/SharpSite --skill reskill -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install FritzAndFriends/SharpSite reskill --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/FritzAndFriends/SharpSite.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.copilot/skills/reskill .gemini/skills/reskill && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "reskill" agent skill from https://github.com/FritzAndFriends/SharpSite/tree/main/.copilot/skills/reskill into .gemini/skills/reskill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reskill", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install FritzAndFriends/SharpSite reskill

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add FritzAndFriends/SharpSite --skill reskill -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/FritzAndFriends/SharpSite.git skills-src && mkdir -p .github/skills && cp -r skills-src/.copilot/skills/reskill .github/skills/reskill && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "reskill" agent skill from https://github.com/FritzAndFriends/SharpSite/tree/main/.copilot/skills/reskill into .github/skills/reskill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reskill", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add FritzAndFriends/SharpSite --skill reskill -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install FritzAndFriends/SharpSite reskill --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/FritzAndFriends/SharpSite.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.copilot/skills/reskill .opencode/skills/reskill && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "reskill" agent skill from https://github.com/FritzAndFriends/SharpSite/tree/main/.copilot/skills/reskill into .opencode/skills/reskill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "reskill", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: reskill
GitHub stars: 145
Used in: 1 other repo
Token cost: ~877 tokens
SKILL.md length: 361 words
Files: 1
Skills in repo: 18
Repo updated: Apr 30, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Team-wide charter and history optimization through skill extraction

Works in 4 steps: Audit → Extract → Trim → …
SKILL.md covers Context, Process, Patterns and Anti-Patterns
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Reskill is an agent skill from FritzAndFriends/SharpSite. Team-wide charter and history optimization through skill extraction

Its SKILL.md is about 880 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: A basic CMS built with .NET 9 and Blazor. The licence is MIT.

Example prompts

“/reskill”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

Audit
Extract
Trim
Report

What it can do on your machine

Read from SKILL.md and the folder at commit c35e5e0. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Reskill loads about 877 tokens when it runs. Until then it costs about 19 tokens; SKILL.md has 361 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~19
When it runs · the whole SKILL.md, loaded when a task matches: ~877

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from FritzAndFriends/SharpSite at commit c35e5e0, republished under its MIT licence (© FritzAndFriends). 361 words, ~877 tokens.

Download SKILL.mdSave it as .claude/skills/reskill/SKILL.md (or your agent's skills folder).

name: reskill
description: Team-wide charter and history optimization through skill extraction
domain: team-optimization
confidence: high
source: manual — Brady directive to reduce per-agent context overhead

Context

When the coordinator hears "team, reskill" (or similar: "optimize context", "slim down charters"), trigger a team-wide optimization pass. The goal: reduce per-agent context consumption by extracting shared patterns from charters and histories into reusable skills.

This is a periodic maintenance activity. Run whenever charter/history bloat is suspected.

Process

Step 1: Audit

Read all agent charters and histories. Measure byte sizes. Identify:

Boilerplate — sections repeated across ≥3 charters with <10% variation (collaboration, model, boundaries template)
Shared knowledge — domain knowledge duplicated in 2+ charters (incident postmortems, technical patterns)
Mature learnings — history entries appearing 3+ times across agents that should be promoted to skills

Step 2: Extract

For each identified pattern:

Create or update a skill at .squad/skills/{skill-name}/SKILL.md
Follow the skill template format (frontmatter + Context + Patterns + Examples + Anti-Patterns)
Set confidence: low (first observation), medium (2+ agents), high (team-wide)

Step 3: Trim

Charters — target ≤1.5KB per agent:

Remove Collaboration section entirely (spawn prompt + agent-collaboration skill covers it)
Remove Voice section (tagline blockquote at top of charter already captures it)
Trim Model section to single line: Preferred: {model}
Remove "When I'm unsure" boilerplate from Boundaries
Remove domain knowledge now covered by a skill — add skill reference comment if helpful
Keep: Identity, What I Own, unique How I Work patterns, Boundaries (domain list only)

Histories — target ≤8KB per agent:

Apply history-hygiene skill to any history >12KB
Promote recurring patterns (3+ occurrences across agents) to skills
Summarize old entries into ## Core Context section
Remove session-specific metadata (dates, branch names, requester names)

Show full SKILL.md (113 more words)Show less

Step 4: Report

Output a savings table:

Agent	Charter Before	Charter After	History Before	History After	Saved

Include totals and percentage reduction.

Patterns

Minimal Charter Template (target format after reskill)

# {Name} — {Role}

> {Tagline — one sentence capturing voice and philosophy}

## Identity
- **Name:** {Name}
- **Role:** {Role}
- **Expertise:** {comma-separated list}

## What I Own
- {bullet list of owned artifacts/domains}

## How I Work
- {unique patterns and principles — NOT boilerplate}

## Boundaries
**I handle:** {domain list}
**I don't handle:** {explicit exclusions}

## Model
Preferred: {model}

Skill Extraction Threshold

1 charter → leave in charter (unique to that agent)
2 charters → consider extracting if >500 bytes of overlap
3+ charters → always extract to a shared skill

Anti-Patterns

Don't delete unique per-agent identity or domain-specific knowledge
Don't create skills for content only one agent uses
Don't merge unrelated patterns into a single mega-skill
Don't remove Model preference line (coordinator needs it for model selection)
Don't touch .squad/decisions.md during reskill
Don't remove the tagline blockquote — it's the charter's soul in one line

Files

Just SKILL.md in .copilot/skills/reskill of FritzAndFriends/SharpSite.

Open the folder on GitHubat commit c35e5e0

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in FritzAndFriends/SharpSite, which our catalogue first saw on October 7, 2026.

olivomarco/github-copilot-token-optimization.copilot/skills/reskill

Compare with similar skills

Reskill next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Reskill compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Reskill this skillFritzAndFriends/SharpSite	145	1 repos	~877	Automated safety check: Pass	MIT	5 mo ago
Extracting Browser History Artifactsmukul975/Anthropic-Cybersecurity-Skills	34k	—	~2.9k	Automated safety check: Warn	Apache-2.0	1 mo ago
Extractalirezarezvani/claude-skills	28k	—	~1.4k	Automated safety check: Pass	MIT	1 mo ago
Reskillbradygaster/squad	3.3k	—	~1.4k	Automated safety check: Pass	MIT	today
Brand Extractnexu-io/open-design	100k	—	~3.1k	Automated safety check: Pass	Apache-2.0	today
Design Extractnexu-io/open-design	100k	—	~549	Automated safety check: Pass	Apache-2.0	today

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Questions about Reskill

What does Reskill do?

Team-wide charter and history optimization through skill extraction. Reskill is an agent skill from FritzAndFriends/SharpSite.

How do I install Reskill in Claude Code?

Run `npx skills add FritzAndFriends/SharpSite --skill reskill -a claude-code`. Or copy the skill folder (.copilot/skills/reskill in FritzAndFriends/SharpSite) into .claude/skills/reskill in your project. Claude Code loads it when a task matches its description.

How do I install Reskill in Codex?

Run `npx skills add FritzAndFriends/SharpSite --skill reskill -a codex`. Or copy the skill folder (.copilot/skills/reskill in FritzAndFriends/SharpSite) into .agents/skills/reskill in your project. Codex loads it when a task matches its description.

Can I use Reskill in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add FritzAndFriends/SharpSite --skill reskill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/reskill, .gemini/skills/reskill, .github/skills/reskill and .opencode/skills/reskill in your project.

What does Reskill need to run?

SKILL.md names no scripts, command-line tools or credentials: Reskill is instructions for the agent only.

Does Reskill access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Reskill safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Reskill use?

Reskill is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Reskill use?

About 877 tokens (SKILL.md is roughly 3.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Reskill?

Skills that share tags, products or a category with Reskill: Extracting Browser History Artifacts (mukul975/Anthropic-Cybersecurity-Skills, 34k stars), Extract (alirezarezvani/claude-skills, 28k stars), Reskill (bradygaster/squad, 3.3k stars) and Brand Extract (nexu-io/open-design, 100k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Reskill?

FritzAndFriends (a GitHub organization) maintains it in FritzAndFriends/SharpSite, which has 145 GitHub stars. The repository holds 18 skills in this directory. The repository was last updated on April 30, 2026.

Source: FritzAndFriends/SharpSite on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Reskill

Facts

At a glance

What it does

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Context

Process

Step 1: Audit

Step 2: Extract

Step 3: Trim

Step 4: Report

Patterns

Minimal Charter Template (target format after reskill)

Skill Extraction Threshold

Anti-Patterns

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from FritzAndFriends/SharpSite

Questions about Reskill