brain-share

brain-share is a skill for Claude Code from toroleapinc/claude-brain. It costs 21 tokens per session (1,061 once invoked), scanned A, original, MIT.

A plugin for synchronizing Claude Code settings and accumulated project knowledge between development machines using Git.

In plain words
What is it for?
Use it to export, merge, and apply Claude Code configuration and knowledge across machines.
Why use it?
It reduces repeated setup when moving between computers and helps keep memories, skills, agents, rules, and settings aligned.

Skill for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the claude-brain plugin — 9 skills, 1 agent, 3 hooks shipped together

Good fit Use it to export, merge, and apply Claude Code configuration and knowledge across machines.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add toroleapinc/claude-brain
Claude Code
/plugin install claude-brain

Made for: Claude Code.

Or install claude-brain, the plugin that ships this one along with the rest of its 9 skills, 1 agent, 3 hooks.

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 brain-share

README.md
[![agentmods](https://agentmods.dev/badge/skills/toroleapinc/claude-brain/brain-share.svg)](https://agentmods.dev/skills/toroleapinc/claude-brain/brain-share)
Your own site
<a href="https://agentmods.dev/skills/toroleapinc/claude-brain/brain-share"><img src="https://agentmods.dev/badge/skills/toroleapinc/claude-brain/brain-share.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,061 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 $0.00021 $0.01061
Opus 5 $0.00010 $0.00531
Sonnet 5 $0.00004 $0.00212
Haiku 4.5 $0.00002 $0.00106

Measured 8d ago against content hash e27efa5fa78f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

brain-share 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 8d 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/brain-share/SKILL.md · 127 lines

What it actually says

Share an artifact with the team by copying it to the shared namespace.

Usage: /brain-share

  • type: 'skill', 'agent', or 'rule'
  • name: the filename (e.g., 'my-skill.md' or 'important-rule.md')
  • Use /brain-share --list to see what's currently shared

Arguments: $ARGUMENTS

Steps

  1. Parse arguments:

    ARGS=($ARGUMENTS)
    TYPE="${ARGS[0]:-}"
    NAME="${ARGS[1]:-}"
    
    # Handle --list flag
    if [ "$TYPE" = "--list" ] || [ "$TYPE" = "list" ]; then
      echo "Delegating to /brain-shared-list..."
      # The agent should invoke /brain-shared-list skill instead
      exit 0
    fi
    
    if [ -z "$TYPE" ] || [ -z "$NAME" ]; then
      echo "Usage: /brain-share <type> <name>"
      echo "       /brain-share --list"
      echo "Types: skill, agent, rule"
      echo "Example: /brain-share skill my-useful-tool.md"
      exit 1
    fi
    
    # Validate type
    case "$TYPE" in
      skill|agent|rule) ;;
      *) echo "ERROR: Type must be 'skill', 'agent', or 'rule'"; exit 1 ;;
    esac
    
  2. Check if the artifact exists locally:

    source "${CLAUDE_PLUGIN_ROOT}/scripts/common.sh"
    
    case "$TYPE" in
      skill) SOURCE_FILE="${CLAUDE_DIR}/skills/${NAME}" ;;
      agent) SOURCE_FILE="${CLAUDE_DIR}/agents/${NAME}" ;;
      rule) SOURCE_FILE="${CLAUDE_DIR}/rules/${NAME}" ;;
    esac
    
    if [ ! -f "$SOURCE_FILE" ]; then
      echo "ERROR: $TYPE '$NAME' not found at: $SOURCE_FILE"
      echo ""
      echo "Available ${TYPE}s:"
      case "$TYPE" in
        skill) ls "${CLAUDE_DIR}/skills/" 2>/dev/null || echo "  (none)" ;;
        agent) ls "${CLAUDE_DIR}/agents/" 2>/dev/null || echo "  (none)" ;;
        rule) ls "${CLAUDE_DIR}/rules/" 2>/dev/null || echo "  (none)" ;;
      esac
      exit 1
    fi
    
  3. Ask the user for confirmation before sharing: "Share $TYPE '$NAME' with all machines in the brain network? This will be visible to all machines that sync with this brain." Wait for user to confirm before proceeding.

  4. Copy to shared namespace:

    # Create shared directory structure
    mkdir -p "${BRAIN_REPO}/shared/skills" "${BRAIN_REPO}/shared/agents" "${BRAIN_REPO}/shared/rules"
    
    case "$TYPE" in
      skill) TARGET_FILE="${BRAIN_REPO}/shared/skills/${NAME}" ;;
      agent) TARGET_FILE="${BRAIN_REPO}/shared/agents/${NAME}" ;;
      rule) TARGET_FILE="${BRAIN_REPO}/shared/rules/${NAME}" ;;
    esac
    
    # Copy the file
    cp "$SOURCE_FILE" "$TARGET_FILE"
    log_info "Copied $TYPE '$NAME' to shared namespace"
    
    # Show the content preview
    echo ""
    echo "Shared $TYPE content preview:"
    echo "---"
    head -20 "$TARGET_FILE"
    if [ $(wc -l < "$TARGET_FILE") -gt 20 ]; then
      echo "... (truncated, total $(wc -l < "$TARGET_FILE") lines)"
    fi
    echo "---"
    
  5. Commit and push:

    cd "${BRAIN_REPO}"
    git add shared/
    if git diff --cached --quiet 2>/dev/null; then
      echo "No changes to commit (file may already be shared)."
    else
      git commit -m "Share $TYPE: $NAME (from $(hostname))"
      
      # Try to push
      if git push origin main 2>/dev/null; then
        echo ""
        echo "✓ $TYPE '$NAME' has been shared with the team!"
        echo "  Team members will receive it on their next brain sync."
      else
        echo ""
        echo "⚠ $TYPE shared locally, but failed to push to remote."
        echo "  Run /brain-sync to retry pushing to the team."
      fi
    fi
    
  6. Show sharing info:

    echo ""
    echo "Shared artifact location: shared/$TYPE/$NAME"
    echo "Team members will see this $TYPE after their next sync."
    
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. 8d ago First seen · 127 lines · 21 tokens per session scan A e27efa5fa78f

Subscribe to this mod's changes

brain-share is a skill published in the GitHub repository toroleapinc/claude-brain (85 stars, last pushed 3mo ago), licensed MIT. It adds 21 tokens to every session and 1,061 once invoked, about $0.0001 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.

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