Agent skill

Unharness

Safely leave Citadel using the active adoption receipt. An agent skill from SethGammon/Citadel.

MITAuto-check passed

Install Unharness

skills CLI

$ npx skills add SethGammon/Citadel --skill unharness -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install SethGammon/Citadel unharness --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/SethGammon/Citadel.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/unharness .claude/skills/unharness && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "unharness" agent skill from https://github.com/SethGammon/Citadel/tree/main/skills/unharness into .claude/skills/unharness/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unharness", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/SethGammon/Citadel/tree/main/skills/unharness

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add SethGammon/Citadel --skill unharness -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install SethGammon/Citadel unharness --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SethGammon/Citadel.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/unharness .agents/skills/unharness && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "unharness" agent skill from https://github.com/SethGammon/Citadel/tree/main/skills/unharness into .agents/skills/unharness/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unharness", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add SethGammon/Citadel --skill unharness -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install SethGammon/Citadel unharness --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SethGammon/Citadel.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/unharness .cursor/skills/unharness && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "unharness" agent skill from https://github.com/SethGammon/Citadel/tree/main/skills/unharness into .cursor/skills/unharness/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unharness", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/SethGammon/Citadel.git --path skills/unharness

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add SethGammon/Citadel --skill unharness -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install SethGammon/Citadel unharness --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SethGammon/Citadel.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/unharness .gemini/skills/unharness && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "unharness" agent skill from https://github.com/SethGammon/Citadel/tree/main/skills/unharness into .gemini/skills/unharness/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unharness", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install SethGammon/Citadel unharness

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add SethGammon/Citadel --skill unharness -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/SethGammon/Citadel.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/unharness .github/skills/unharness && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "unharness" agent skill from https://github.com/SethGammon/Citadel/tree/main/skills/unharness into .github/skills/unharness/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unharness", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add SethGammon/Citadel --skill unharness -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install SethGammon/Citadel unharness --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SethGammon/Citadel.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/unharness .opencode/skills/unharness && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "unharness" agent skill from https://github.com/SethGammon/Citadel/tree/main/skills/unharness into .opencode/skills/unharness/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unharness", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: unharness
GitHub stars: 923
Token cost: ~1.1k tokens
SKILL.md length: 473 words
Files: 1
Skills in repo: 48
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Safely leave Citadel using the active adoption receipt. An agent skill from SethGammon/Citadel.

Works in 4 steps: Locate Citadel and inspect adoption… → Create a no-write leave plan → Obtain explicit approval → …
SKILL.md covers Orientation, Protocol, Export-only compatibility and Fringe Cases, plus 2 more sections
Calls node

What it does

Unharness is an agent skill from SethGammon/Citadel. Safely leave Citadel using the active adoption receipt. Produces a no-write, reviewable plan, preserves a portable archive, removes only exact owned material, and reports modified or externally registered surfaces as retained or unknown. Legacy installs must be imported before exact leave is claimed.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: The operating layer for Claude Code + OpenAI Codex: persistent project memory, intent routing, safety hooks, cost telemetry, and parallel agent fleets. The licence is MIT.

Example prompts

“/unharness”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

Locate Citadel and inspect adoption authority
Create a no-write leave plan
Obtain explicit approval
Apply and verify

What it can do on your machine

Read from SKILL.md and the folder at commit e41ff1d. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- node
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Unharness loads about 1.1k tokens when it runs. Until then it costs about 78 tokens; SKILL.md has 473 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~78
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from SethGammon/Citadel at commit e41ff1d, republished under its MIT licence (© SethGammon). 473 words, ~1,133 tokens.

Download SKILL.mdSave it as .claude/skills/unharness/SKILL.md (or your agent's skills folder).

name: unharness
description: Safely leave Citadel using the active adoption receipt. Produces a no-write, reviewable plan, preserves a portable archive, removes only exact owned material, and reports modified or externally registered surfaces as retained or unknown. Legacy installs must be imported before exact leave is claimed.
license: MIT
user-invocable: true
auto-trigger: false
trigger_keywords: unharness, remove citadel, uninstall citadel, clean up citadel, remove harness, uninstall harness
last-updated: 2026-07-30

/unharness - Receipt-owned exit from Citadel

Orientation

Use this skill when the user wants Citadel removed from a project. Exit is a two-step, receipt-owned operation. A plan never mutates the project. Apply requires the exact saved plan and its confirmation token.

Do not infer ownership from familiar paths. Do not delete .planning/, .citadel/, runtime settings, hooks, skills, or registrations merely because they look Citadel-related.

Protocol

1. Locate Citadel and inspect adoption authority

Read .citadel/plugin-root.txt when present. Otherwise use the directory containing this skill. Check for .citadel/adoption/active.json; the adoption planner also checks the private recovery ledger.

2. Create a no-write leave plan

Choose a plan path inside the project, such as .planning/adoption/leave.plan.json, and run:

bash

node {citadelRoot}/scripts/adopt.js leave plan \
  --target {projectRoot} \
  --out {planPath} \
  --json

Show the user:

exact files that will be removed or restored;
modified or ambiguous footprint entries that will be retained;
portable archive path;
runtime registrations whose removal evidence is unknown;
the plan digest and confirmation token.

If the result is NOT_ADOPTED, stop. Create a conservative legacy inventory:

bash

node {citadelRoot}/scripts/adopt.js import plan {citadelRoot} \
  --target {projectRoot} \
  --out {importPlanPath} \
  --json

Apply that import only after its own explicit approval. Then create a new leave plan from the resulting receipt. Never describe legacy cleanup as exact removal.

3. Obtain explicit approval

Leaving is destructive. Ask the user to approve the displayed plan and exact confirmation token. Do not apply from an unsaved or regenerated plan.

4. Apply and verify

After approval:

bash

node {citadelRoot}/scripts/adopt.js leave apply {planPath} \
  --confirm {confirmationToken} \
  --json

node {citadelRoot}/scripts/adopt.js doctor \
  --target {projectRoot} \
  --json

Doctor may report not_adopted after a clean leave. Report the leave receipt, archive path, removed entries, retained conflicts, and every unknown unregistration observation. “Citadel removed” is permitted only when the receipt proves every required local and external removal.

Export-only compatibility

When the user explicitly wants a human-readable export without leaving:

bash

node {citadelRoot}/scripts/unharness.js {projectRoot} --export-only

This writes the legacy Markdown archive but does not remove harness material.

Show full SKILL.md (192 more words)Show less

Fringe Cases

If .planning/ does not exist, treat it as an empty portable-state set and show the setup/import hint; do not create it merely to leave.
Missing or invalid adoption authority blocks leave. Use import plan or private-ledger recovery; never guess ownership.
A changed saved plan, source, target, or pre-image requires a fresh plan.
An unavailable runtime unregister API stays unknown; report the manual observation required.
If the Citadel root cannot be located, stop with the exact missing path.

Quality gates

Planning is read-only unless the user explicitly requests --out.
Apply consumes the exact saved plan and revalidates source, target, and pre-images.
Modified owned material is retained with an explicit conflict.
Shared runtime files restore exact pre-images only while installed bytes remain exact.
Missing receipts, malformed receipts, and unenumerable registrations are unknown or blocked, never successful.
The portable archive and private receipt ledger remain available for restore and recovery.

Exit Protocol

Return the leave operation ID and receipt digest, portable archive path, exact removed/restored counts, retained conflicts, and unknown external removals. State plainly whether exact exit was proved. Do not claim success from a completed command when required removal evidence is missing.

Files

Just SKILL.md in skills/unharness of SethGammon/Citadel.

Open the folder on GitHubat commit e41ff1d

Compare with similar skills

Unharness next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Unharness compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Unharness this skillSethGammon/Citadel	923	—	~1.1k	Automated safety check: Pass	MIT	today
AdoptDonchitos/Claude-Code-Game-Studios	26k	—	~1.2k	Automated safety check: Notes	MIT	yesterday
Leave Managementsickn33/agentic-awesome-skills	47k	1 repos	~3.7k	Automated safety check: Pass	MIT	today
Modeling Activation MetricsPostHog/posthog	40k	—	~1.4k	Automated safety check: Pass	Custom licence	today
Receipt Accountingsickn33/agentic-awesome-skills	47k	1 repos	~5.5k	Automated safety check: Pass	MIT	today
Bug Receiptgithub/awesome-copilot	40k	—	~1.1k	Automated safety check: Pass	MIT	today

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26k GitHub stars~1.2k tokensUpdated yesterday
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Leave Management
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Leave register: request, leave type, employee and department, manager and approver, start and end dates, days requested, leave balances, handover notes and status.
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Auto-check passed
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Receipt Accounting
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Receipt register: payer, mode, gross amount received, invoice allocation, unapplied amount and TDS collected.
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Close defects and incidents with a BUG RECEIPT and VERIFIED, PARTIAL, or BLOCKED status after diagnosis, repair, or recovery.
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Questions about Unharness

What does Unharness do?

Safely leave Citadel using the active adoption receipt. An agent skill from SethGammon/Citadel. Unharness is an agent skill from SethGammon/Citadel. Safely leave Citadel using the active adoption receipt.

How do I install Unharness in Claude Code?

Run `npx skills add SethGammon/Citadel --skill unharness -a claude-code`. Or copy the skill folder (skills/unharness in SethGammon/Citadel) into .claude/skills/unharness in your project. Claude Code loads it when a task matches its description.

How do I install Unharness in Codex?

Run `npx skills add SethGammon/Citadel --skill unharness -a codex`. Or copy the skill folder (skills/unharness in SethGammon/Citadel) into .agents/skills/unharness in your project. Codex loads it when a task matches its description.

Can I use Unharness in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add SethGammon/Citadel --skill unharness -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/unharness, .gemini/skills/unharness, .github/skills/unharness and .opencode/skills/unharness in your project.

What does Unharness need to run?

Going by SKILL.md and its folder, Unharness needs the command-line tools its instructions call (node).

Does Unharness access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Unharness safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Unharness use?

Unharness is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Unharness use?

About 1.1k tokens (SKILL.md is roughly 4.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Unharness?

Skills that share tags, products or a category with Unharness: Adopt (Donchitos/Claude-Code-Game-Studios, 26k stars), Leave Management (sickn33/agentic-awesome-skills, 47k stars), Modeling Activation Metrics (PostHog/posthog, 40k stars) and Receipt Accounting (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Unharness?

SethGammon (a GitHub user) maintains it in SethGammon/Citadel, which has 923 GitHub stars. The repository holds 48 skills in this directory. The repository was last updated on October 8, 2026.

Source: SethGammon/Citadel on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Unharness

Facts

At a glance

What it does

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

/unharness - Receipt-owned exit from Citadel

Orientation

Protocol

1. Locate Citadel and inspect adoption authority

2. Create a no-write leave plan

3. Obtain explicit approval

4. Apply and verify

Export-only compatibility

Fringe Cases

Quality gates

Exit Protocol

Files

Compare with similar skills

Similar skills

More from SethGammon/Citadel

Questions about Unharness