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 jhlee0409/omni-harness-kit/plugin install harness-kitWrote 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/jhlee0409/omni-harness-kit/worktree)<a href="https://agentmods.dev/skills/jhlee0409/omni-harness-kit/worktree"><img src="https://agentmods.dev/badge/skills/jhlee0409/omni-harness-kit/worktree/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/jhlee0409/omni-harness-kit/worktree"><img src="https://agentmods.dev/badge/skills/jhlee0409/omni-harness-kit/worktree.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00075 | $0.00315 |
| Opus 5 | $0.00037 | $0.00158 |
| Sonnet 5 | $0.00015 | $0.00063 |
| Haiku 4.5 | $0.00007 | $0.00032 |
Grade A, and why
worktree scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
worktree
Each code-change task gets its own worktree, so the main checkout stays clean and
parallel tasks don't collide. (Only relevant if the repo opted into this workflow
at introspect time — .claude/harness-kit.json worktree_workflow: true.)
- Create: from the repo root, run
bash "${CLAUDE_PLUGIN_ROOT}/skills/worktree/new-worktree.sh" "<slug>" [base]. It creates../<repo>-<slug>on a new branch<slug>(frombase, defaultHEAD— pass your integration branch to branch off it) and prints the path. - Work there: make the task's edits in that worktree (
cdinto it, orgit -C <path> …). Keep the main checkout read-only for edits. - Finish: open a PR from the branch, then
git worktree remove <path>.
What ships with it
1 file 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.
- 8d ago First seen · 25 lines · 75 tokens per session scan A 1609a14dc810
worktree is a skill published in the GitHub repository jhlee0409/omni-harness-kit (2 stars, last pushed 1mo ago), licensed MIT. It adds 75 tokens to every session and 315 once invoked, about $0.0004 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 2026-08-31.
Other skills, from other repositories
release
Prepare a version release — bump version files, commit, and tag. Just run /release with no arguments.
merge
Absorb one or more feature branches into the base branch. Recommends merge vs rebase per branch. On conflict, aborts that branch + surfaces the file list + stops. Resolution out of scope; routes to the harness-named conflict-resolution agent or the user.
release-init
Detect project type and generate a tailored project-level /release skill. Run once per project to set up releasing.
commit
Commit the current session's changes only, gateway-inline. Session-isolated (never -A, staged set verified against the session list), doc-sync-gated. The gateway runs the commit inline — it already holds the diff, session file list, and change intent; on a mechanical gate hit it judges doc-sync warm in its own context…
drain
Parallel-worktree auto-drain of the board. One /super-bootstrap:drain turn = scan the pipeline sources (specs/plans/backlog, plus the scale module's test queue when present) → keep only admissible items → relation-analyze into a conflict-free wave → confirm with the user → spawn one isolated git worktree + headless…
setup-caliber
Sets up Caliber for automatic AI agent context sync. Installs pre-commit hooks so CLAUDE.md, Cursor rules, and Copilot instructions update automatically on every commit. Use when Caliber hooks are not yet installed or when the user asks about keeping agent configs in sync.