xc - SKILL.md Agent Skill

name: xc description: X/Twitter CLI using the official API v2 with OAuth 2.0. Read, search, post, manage DMs, bookmarks, lists, followers, and track API costs. homepage: https://github.com/jalehman/xc metadata: {"clawdbot":{"emoji":"𝕏","requires":{"bins":["xc"]}}}

xc — X API v2 CLI

Use xc to interact with X (Twitter) via the official API. Pay-per-use with built-in cost tracking — no cookie scraping.

Prerequisites

Must be authenticated first: xc auth status to check
If not authenticated: xc auth login --client-id <CLIENT_ID> (requires X Developer Portal app)
With client secret: xc auth login --client-id <ID> --client-secret <SECRET> (enables token refresh)
Config stored in ~/.xc/ (or $XC_CONFIG_DIR)

Quick Reference

# Identity
xc whoami                          # Who am I?
xc auth status                     # Auth status for all accounts

# Reading
xc search "query" -n 10            # Search recent posts (7-day window)
xc search "from:username" -n 5     # Search by author
xc user <username>                 # Look up user profile
xc timeline -n 10                  # Home timeline
xc timeline <username> -n 10       # User's posts

# Posting
xc post "Hello world"              # Create a post
xc post "Reply" --reply <post-id>  # Reply to a post
xc post "Look" --quote <post-id>   # Quote a post
xc post "1/3" --thread "2/3" "3/3" # Post a thread
xc post "Photo" --media image.jpg  # Post with media (paid tier)
xc delete <post-id>                # Delete a post

# Engagement
xc like <post-id>                  # Like a post
xc unlike <post-id>                # Unlike a post
xc bookmark <post-id>              # Bookmark a post
xc unbookmark <post-id>            # Remove bookmark
xc bookmarks                      # List bookmarks

# Social
xc followers <username> -n 20     # List followers
xc following <username> -n 20     # List following
xc follow <username>               # Follow a user
xc unfollow <username>             # Unfollow a user

# Lists
xc lists                           # List owned lists
xc list <list-id>                  # View posts in a list

# DMs (paid tier required)
xc dm list                         # List DM conversations
xc dm history <username>           # DM history with user
xc dm send <username> "message"    # Send a DM

# Streaming (requires Bearer Token auth)
xc stream rules                    # List stream rules
xc stream add "query"              # Add filter rule
xc stream remove <rule-id>         # Remove rule
xc stream clear                    # Remove all rules
xc stream connect                  # Connect to live stream

# Cost tracking
xc cost                            # Spending summary (1h/24h/7d/30d)
xc cost --daily                    # Day-by-day breakdown
xc cost log                        # Raw request log

# Budget
xc budget show                     # Current budget and spend
xc budget set --daily 2.00         # Set $2/day limit (warns when exceeded)
xc budget set --daily 5.00 --action block  # Block when over budget

# API usage
xc usage                           # X API usage stats (Bearer Token only)

Important Notes

Cost footer: Every command prints estimated cost. Suppress with --quiet.
JSON output: Most commands support --json for machine-readable output.
Multi-account: Use --account <name> on any command, or xc auth switch <name>.
Rate limits: The X API has rate limits per endpoint. If you hit 429 errors, wait and retry.
OAuth scopes: xc requests all scopes at login including media.write, dm.read, dm.write. If you get 403 on media/DMs, re-authenticate to pick up the new scopes.
Paid tier features: DMs and media upload require a paid X API plan (pay-per-use or Basic+). Free tier returns 403.
Bearer Token features: stream and usage commands require app-only Bearer Token auth (xc auth token <TOKEN>), not OAuth 2.0.
Search minimum: X API returns a minimum of 10 results regardless of -n value.

Posting Guidelines

Always confirm with the user before posting. Never post, like, follow, or send DMs without explicit approval. Read operations (search, timeline, user lookup) are safe to run freely.

When composing posts:

X limit is 280 characters (or 25,000 for Premium subscribers)
Use --thread for longer content
Delete test posts after verification: xc delete <id>

Common Patterns

# Search and summarize recent discussion about a topic
xc search "topic" -n 10 --json | jq '.[] | {text: .text, author: .author}'

# Post a thread
xc post "1/ Here's a thread about..." --thread "2/ Second point" "3/ Final thought"

# Check spending before a batch operation
xc budget show
xc cost --daily