verify-gates

verify-gates is a skill for Claude Code from Arch1eSUN/Arcgentic. It costs 75 tokens per session (627 once invoked), scanned A, original, MIT.

A set of checks for confirming that an Arcgentic workflow has the files, Git commits and audit records required before moving from one state to another.

In plain words
What is it for?
Use it to pre-check handoff documents, development commit chains and audit verdict tables, or to investigate why a state transition failed.
Why use it?
It catches incomplete handoffs, missing commits or unresolved commit IDs before the workflow advances. This makes failed transitions easier to explain and correct.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents.

Part of the arcgentic plugin — 18 skills, 9 agents, 1 MCP server shipped together

Good fit Use it to pre-check handoff documents, development commit chains and audit verdict tables, or to investigate why a state transition failed.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/arch1esun/arcgentic/verify-gates
Install

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.

Any agent
npx skills add Arch1eSUN/Arcgentic --skill verify-gates
Clone the repo
git clone --depth 1 https://github.com/Arch1eSUN/Arcgentic

Made for: Claude Code.

Or install arcgentic, the plugin that ships this one along with the rest of its 18 skills, 9 agents, 1 MCP server.

Wrote 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.

agentmods badge for verify-gates

README.md
[![agentmods](https://agentmods.dev/badge/skills/arch1esun/arcgentic/verify-gates/github.svg)](https://agentmods.dev/skills/arch1esun/arcgentic/verify-gates)
Your own site
<a href="https://agentmods.dev/skills/arch1esun/arcgentic/verify-gates"><img src="https://agentmods.dev/badge/skills/arch1esun/arcgentic/verify-gates/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.

agentmods 80×15 button for verify-gates

Your own site · 80×15
<a href="https://agentmods.dev/skills/arch1esun/arcgentic/verify-gates"><img src="https://agentmods.dev/badge/skills/arch1esun/arcgentic/verify-gates.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 627 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00075 $0.00627
Opus 5 $0.00037 $0.00313
Sonnet 5 $0.00015 $0.00125
Haiku 4.5 $0.00007 $0.00063

Measured 9d ago against content hash 6a9288ebe315, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

verify-gates 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 9d 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.

skills/verify-gates/SKILL.md · 53 lines

How it starts

The opening of the file, as written. The whole thing — 53 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verify gates

What this skill does

arcgentic's state machine has 4 gates (MVP):

Gate Transition Verifies
handoff-doc-gate.sh planning → awaiting_dev_start handoff doc exists + has all required sections
round-commit-chain-gate.sh dev_in_progress → awaiting_audit (also fix_in_progress → awaiting_audit) dev_commits count ≥ expected + every SHA resolves in git
verdict-fact-table-gate.sh `audit_in_progress → passed needs_fix`

transition.sh runs the required gate automatically. This skill is for the orchestrator (or human) when they want to pre-verify before attempting the transition.

When to invoke this skill

  • About to ask a sub-agent to attempt a state transition → invoke this skill first, run the gate, fix any failures, then transition
  • A transition failed and the orchestrator wants to know WHY → invoke this skill, run the relevant gate, read the failure reason
  • Setting up a new gate for a project-specific transition → this skill's references/gate-script-catalog.md shows the gate-script shape

Gate script contract

Every gate script:

  1. Takes --state-file PATH as its only argument
  2. Reads state.yaml + does whatever check it does
  3. Exits 0 on PASS, 1 on FAIL
  4. Prints PASS line to stdout, FAIL reason to stderr

This contract means gates are composable. You can chain them. You can write project-specific ones in your own <project>/.agentic-rounds/gates/ and reference them in state.yaml's states.<state>.gate field.

Run a gate manually

bash $PLUGIN_ROOT/scripts/gates/handoff-doc-gate.sh \
  --state-file <project>/.agentic-rounds/state.yaml
echo "exit: $?"

Adding a project-specific gate

  1. Write <project>/.agentic-rounds/gates/your-gate.sh following the contract above
  2. Edit state.yaml: set states.<source-state>.gate to your-gate.sh
  3. Run transition.sh --gates-dir <project>/.agentic-rounds/gates ... (override built-in gates dir)

Read the full file on GitHub · 53 lines

Files

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.

Changes

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.

  1. 9d ago First seen · 53 lines · 75 tokens per session scan A 6a9288ebe315

Subscribe to this mod's changes

verify-gates is a skill published in the GitHub repository Arch1eSUN/Arcgentic (293 stars, last pushed 27d ago), licensed MIT. It adds 75 tokens to every session and 627 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 2026-08-30.

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