How do I install the Capability skill?

Run npx skillmds add majiayu000/capability in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Capability skill do?

Verify if a specific action is possible and diagnose any blockers. It is listed under Coding & Dev Tools on SkillMD.

Is Capability safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Capability?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Capability free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Capability?

majiayu000 (@majiayu000) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Capability by majiayu000 — Agent Skill

Name: Capability
Rating: 4.2 (5 reviews)
Author: majiayu000

File contents

name: capability description: Check if a specific action is possible and what might be blocking it. Use when asking if you can do something, checking permissions, verifying a capability exists, or troubleshooting why something isn't working. Trigger words: can I, capability, able to, permission, possible, how do I. context: fork allowed-tools: - Bash - Read - Grep - Glob

Capability Check

Verify if a specific action is possible and diagnose any blockers.

Capability Inventory

Full capabilities documentation: ~/.claude-mind/self/inventory.md

Access Patterns

# Read full inventory (comprehensive reference)
cat ~/.claude-mind/self/inventory.md

# Search for specific capability
grep -ni "search term" ~/.claude-mind/self/inventory.md

# List all sections
grep "^## " ~/.claude-mind/self/inventory.md

Quick Capability Matrix

Capability	Method	Requires
Send iMessage	AppleScript via Samara	Samara running, Automation permission
Send image	`send-image` script	Pictures folder workaround
Read calendar	AppleScript	Calendar permission
Write calendar	AppleScript	Calendar permission
Read contacts	AppleScript	Contacts permission
Read/write notes	AppleScript	Notes permission
Send email	AppleScript	Mail permission
Post to Bluesky	`bluesky-post` script	Credentials in config
Browse web	Playwright MCP	MCP server running
Take screenshot	`screenshot` script	Screen recording permission
Read Messages DB	Direct file access	Full Disk Access
Run shell commands	Bash	Always available
Read/write files	Direct	Always available

Checking Specific Capabilities

Messaging

pgrep -q Samara && echo "Samara: OK" || echo "Samara: Not running"
~/.claude-mind/system/bin/message "test" --dry-run 2>/dev/null

Calendar

osascript -e 'tell application "Calendar" to get name of calendars' 2>&1

Contacts

osascript -e 'tell application "Contacts" to get name of first person' 2>&1

Notes

osascript -e 'tell application "Notes" to get name of first note' 2>&1

Mail

osascript -e 'tell application "Mail" to get name of first account' 2>&1

Bluesky

grep -q "bluesky" ~/.claude-mind/system/config.json && echo "Bluesky: Configured" || echo "Bluesky: Not configured"

Full Disk Access

ls ~/Library/Messages/chat.db 2>/dev/null && echo "FDA: OK" || echo "FDA: Missing"

Troubleshooting Flow

Identify the capability: What action is being attempted?
Check prerequisites:
- Is the required app/service running?
- Are permissions granted?
- Is configuration present?
Test minimally: Run simplest possible version of the action
Check logs: Look for error messages

log show --predicate 'process == "osascript"' --last 2m

Report findings: What works, what doesn't, what to fix

Common Blockers

"Not authorized to send Apple events": Missing Automation permission
"Operation not permitted": Missing FDA or specific permission
"Application isn't running": Need to launch the app first
"No such file": Script or config missing

---name: capabilitydescription: Verify if a specific action is possible and diagnose any blockers.--- --- name: capability description: Check if a specific action is possible and what might be blocking it. Use when asking if you can do something, checking permissions, verifying a capability exists, or troubleshooting why something isn't working. Trigger words: can I, capability, able to, permission, possible, how do I. context: fork allowed-tools: - Bash - Read - Grep - Glob --- # Capability Check Verify if a specific action is possible and diagnose any blockers. ## Capability Inventory Full capabilities documentation: `~/.claude-mind/self/inventory.md` ### Access Patterns ```bash # Read full inventory (comprehensive reference) cat ~/.claude-mind/self/inventory.md # Search for specific capability grep -ni "search term" ~/.claude-mind/self/inventory.md # List all sections grep "^## " ~/.claude-mind/self/inventory.md ``` ## Quick Capability Matrix | Capability | Method | Requires | |------------|--------|----------| | Send iMessage | AppleScript via Samara | Samara running, Automation permission | | Send image | `send-image` script | Pictures folder workaround | | Read calendar | AppleScript | Calendar permission | | Write calendar | AppleScript | Calendar permission | | Read contacts | AppleScript | Contacts permission | | Read/write notes | AppleScript | Notes permission | | Send email | AppleScript | Mail permission | | Post to Bluesky | `bluesky-post` script | Credentials in config | | Browse web | Playwright MCP | MCP server running | | Take screenshot | `screenshot` script | Screen recording permission | | Read Messages DB | Direct file access | Full Disk Access | | Run shell commands | Bash | Always available | | Read/write files | Direct | Always available | ## Checking Specific Capabilities ### Messaging ```bash pgrep -q Samara && echo "Samara: OK" || echo "Samara: Not running" ~/.claude-mind/system/bin/message "test" --dry-run 2>/dev/null ``` ### Calendar ```bash osascript -e 'tell application "Calendar" to get name of calendars' 2>&1 ``` ### Contacts ```bash osascript -e 'tell application "Contacts" to get name of first person' 2>&1 ``` ### Notes ```bash osascript -e 'tell application "Notes" to get name of first note' 2>&1 ``` ### Mail ```bash osascript -e 'tell application "Mail" to get name of first account' 2>&1 ``` ### Bluesky ```bash grep -q "bluesky" ~/.claude-mind/system/config.json && echo "Bluesky: Configured" || echo "Bluesky: Not configured" ``` ### Full Disk Access ```bash ls ~/Library/Messages/chat.db 2>/dev/null && echo "FDA: OK" || echo "FDA: Missing" ``` ## Troubleshooting Flow 1. **Identify the capability**: What action is being attempted? 2. **Check prerequisites**: - Is the required app/service running? - Are permissions granted? - Is configuration present? 3. **Test minimally**: Run simplest possible version of the action 4. **Check logs**: Look for error messages ```bash log show --predicate 'process == "osascript"' --last 2m ``` 5. **Report findings**: What works, what doesn't, what to fix ## Common Blockers - **"Not authorized to send Apple events"**: Missing Automation permission - **"Operation not permitted"**: Missing FDA or specific permission - **"Application isn't running"**: Need to launch the app first - **"No such file"**: Script or config missing

Frequently asked questions