Oh My Claude Code is a multi-agent orchestration system for Claude Code, coordinating specialized agents, commands, skills, hooks, and workflows. It is designed for developers who want Claude Code to handle coding tasks through coordinated agent roles. Catalogue entries are components of its Claude Code workflow, including agents, commands, skills, hooks, instructions, MCP configuration, and a plugin.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add Yeachan-Heo/oh-my-claudecode --skill project-session-managergit clone --depth 1 https://github.com/Yeachan-Heo/oh-my-claudecodeWrote 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/yeachan-heo/oh-my-claudecode/project-session-manager)<a href="https://agentmods.dev/skills/yeachan-heo/oh-my-claudecode/project-session-manager"><img src="https://agentmods.dev/badge/skills/yeachan-heo/oh-my-claudecode/project-session-manager/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/yeachan-heo/oh-my-claudecode/project-session-manager"><img src="https://agentmods.dev/badge/skills/yeachan-heo/oh-my-claudecode/project-session-manager.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket warn
- Snyk warn
- NVIDIA SkillSpector warn
SkillSpector: 5 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Rogue Agent · line 185 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 211 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 303 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Data Exfiltration · line 367 Code scans file system directories looking for sensitive files. This could be reconnaissance for credential theft.Fix: Remove unnecessary filesystem scanning. If file access is needed, use explicit, scoped paths. Avoid reading ~/.ssh, ~/.aws, or credential directories.
- medium Rogue Agent · line 563 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 | $0.00023 | $0.04630 |
| Opus 5 | $0.00012 | $0.02315 |
| Sonnet 5 | $0.00005 | $0.00926 |
| Haiku 4.5 | $0.00002 | $0.00463 |
Grade A, and why
project-session-manager 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.
Copies of this mod
2 near-identical copies found in the catalogue:
- project-session-manager — 88% identical, 85 lines differ
- project-session-manager — 88% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 593 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Project Session Manager (PSM) Skill
psm is the compatibility alias for this canonical skill entrypoint.
Quick Start (worktree-first): Start with
omc teleportwhen you want an isolated issue/PR/feature worktree before adding any tmux/session orchestration:omc teleport #123 # Create worktree for issue/PR omc teleport my-feature # Create worktree for feature omc teleport list # List worktreesSee Teleport Command below for details.
Automate isolated development environments using git worktrees and tmux sessions with Claude Code. Enables parallel work across multiple tasks, projects, and repositories.
Canonical slash command: /oh-my-claudecode:project-session-manager (alias: /oh-my-claudecode:psm).
Commands
| Command | Description | Example |
|---|---|---|
review <ref> |
PR review session | /psm review omc#123 |
fix <ref> |
Issue fix session | /psm fix omc#42 |
feature <proj> <name> |
Feature development | /psm feature omc add-webhooks |
list [project] |
List active sessions | /psm list |
attach <session> |
Attach to session | /psm attach omc:pr-123 |
kill <session> |
Kill session | /psm kill omc:pr-123 |
cleanup |
Clean merged/closed | /psm cleanup |
status |
Current session info | /psm status |
Project References
Supported formats:
- Alias:
omc#123(requires~/.psm/projects.json) - Full:
owner/repo#123 - URL:
https://github.com/owner/repo/pull/123 - Current:
#123(uses current directory's repo)
Configuration
Project Aliases (~/.psm/projects.json)
{
"aliases": {
"omc": {
"repo": "Yeachan-Heo/oh-my-claudecode",
"local": "~/Workspace/oh-my-claudecode",
"default_base": "main"
}
},
"defaults": {
"worktree_root": "~/.psm/worktrees",
"cleanup_after_days": 14
}
}
Providers
PSM supports multiple issue tracking providers:
What ships with it
19 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.
- lib/config.sh 3.7 KB runs code
- lib/parse.sh 5.9 KB runs code
- lib/providers/azure-devops.sh 1.5 KB runs code
- lib/providers/bitbucket.sh 1.8 KB runs code
- lib/providers/gitea.sh 2.7 KB runs code
- lib/providers/github.sh 1.5 KB runs code
- lib/providers/gitlab.sh 1.5 KB runs code
- lib/providers/interface.sh 1.9 KB runs code
- lib/providers/jira.sh 2.2 KB runs code
- lib/session.sh 5.7 KB runs code
- lib/tmux.sh 7.7 KB runs code
- lib/worktree.sh 6.7 KB runs code
- psm.sh 26 KB runs code
- templates/feature.md 1.1 KB
- templates/issue-fix.md 1.1 KB
- templates/pr-review.md 1.5 KB
- templates/projects.json 418 B
- tests/test-jira-provider.sh 6.2 KB runs code
- tests/test-psm-prompt-injection.sh 12 KB runs code
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.
- 8d ago First seen · 593 lines · 23 tokens per session scan A e5ab819e7fcf
project-session-manager is a skill published in the GitHub repository Yeachan-Heo/oh-my-claudecode (39,107 stars, last pushed today), licensed MIT. It adds 23 tokens to every session and 4,630 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 2026-09-03.
Other skills, from other repositories
worktrees
Manage Git worktrees as OMO safe isolated coding lanes for complex, risky, or parallel work.
moai-workflow-worktree
Git worktree management for parallel SPEC development with isolated workspaces, automatic branch registration, and seamless MoAI-ADK integration. Use when setting up parallel development environments.
artifact-metadata
Manage artifact metadata, versioning, ownership, and review history across the SDLC lifecycle.
steward-prep-delivery
Steward-assisted prep for filing issues and PRs — environment capture, template selection, duplicate detection, delivery-policy compliance check.
contribute-start
Initialize an AIWG contribution workflow by creating a feature branch, configuring DCO, and linking a tracking issue.
openspec-bulk-apply-change
Use when multiple active OpenSpec changes should be applied concurrently in isolated worktrees with delegated verification and no merge.