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.
/plugin marketplace add RobinNorberg/oh-my-copilot/plugin install oh-my-copilotWrote 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.
[](https://agentmods.dev/skills/robinnorberg/oh-my-copilot/omc-setup)<a href="https://agentmods.dev/skills/robinnorberg/oh-my-copilot/omc-setup"><img src="https://agentmods.dev/badge/skills/robinnorberg/oh-my-copilot/omc-setup.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00027 | $0.02502 |
| Opus 5 | $0.00014 | $0.01251 |
| Sonnet 5 | $0.00005 | $0.00500 |
| Haiku 4.5 | $0.00003 | $0.00250 |
Grade A, and why
omc-setup 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 197 lines — stays where its author put it; the contents beside it link to each section on GitHub.
OMC Setup
This is the only command you need to learn. After running this, everything else is automatic.
When this skill is invoked, immediately execute the workflow below. Do not only restate or summarize these instructions back to the user.
Note: All ~/.claude/... paths in this guide respect COPILOT_CONFIG_DIR when that environment variable is set.
Best-Fit Use
Choose this setup flow when the user wants to install, refresh, or repair OMC itself.
- Marketplace/plugin install users should land here after
/plugin install oh-my-copilot - npm users should land here after
npm i -g oh-my-copilot@latest - local-dev and worktree users should land here after updating the checked-out repo and rerunning setup
Flag Parsing
Check for flags in the user's invocation:
--help→ Show Help Text (below) and stop--local→ Phase 1 only (target=local), then stop--global→ Phase 1 only (target=global), then stop--force→ Skip Pre-Setup Check, run full setup (Phase 1 → 2 → 3 → 4)- No flags → Run Pre-Setup Check, then full setup if needed
Help Text
When user runs with --help, display this and stop:
OMC Setup - Configure oh-my-copilot
USAGE:
/oh-my-copilot:omc-setup Run initial setup wizard (or update if already configured)
/oh-my-copilot:omc-setup --local Configure local project (.claude/CLAUDE.md)
/oh-my-copilot:omc-setup --global Configure global settings (~/.claude/CLAUDE.md)
/oh-my-copilot:omc-setup --force Force full setup wizard even if already configured
/oh-my-copilot:omc-setup --help Show this help
MODES:
Initial Setup (no flags)
- Interactive wizard for first-time setup
- Configures CLAUDE.md (local or global)
- Sets up HUD statusline
- Checks for updates
- Clears retired setup values (5.0.0 removed defaultExecutionMode) and points MCP registration at Claude Code's native config
- Configures team mode defaults (agent count, type, model)
- If already configured, offers quick update option
Local Configuration (--local)
- Invokes the plugin-local coordinator through `scripts/setup-claude-md.mjs`; the script validates the coordinator response and its exit status before any post-install work
- Reports coordinator-created byte-identical backups only for files that required mutation
- Project-specific settings
- Use this to update project config after OMC upgrades
Global Configuration (--global)
- Invokes the plugin-local coordinator through `scripts/setup-claude-md.mjs`; the script validates the coordinator response and its exit status before any post-install work
- Reports coordinator-created byte-identical backups only for changed global files
- Default: explicitly overwrites ~/.claude/CLAUDE.md so plain `claude` also uses OMC
- Optional preserve mode keeps the user's base `CLAUDE.md` and installs OMC into `CLAUDE-omc.md` for `omc` launches
- Applies to all Claude Code sessions
- Preserves same-named legacy hook files unless their exact historical contents are independently verified
- Use this to update global config after OMC upgrades
Force Full Setup (--force)
- Bypasses the "already configured" check
- Runs the complete setup wizard from scratch
- Use when you want to reconfigure preferences
EXAMPLES:
/oh-my-copilot:omc-setup # First time setup (or update CLAUDE.md if configured)
/oh-my-copilot:omc-setup --local # Update this project
/oh-my-copilot:omc-setup --global # Update all projects
/oh-my-copilot:omc-setup --force # Re-run full setup wizard
For more info: https://github.com/Yeachan-Heo/oh-my-copilot
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago First seen · 197 lines · 27 tokens per session scan A afbbdb61c8a8
omc-setup is a skill published in the GitHub repository RobinNorberg/oh-my-copilot (5 stars, last pushed yesterday), licensed MIT. It adds 27 tokens to every session and 2,502 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 2026-09-04.
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