x-verify

x-verify is a skill for Claude Code from KtKID/x-dev-pipeline. It costs 55 tokens per session (550 once invoked), scanned A, original, MIT.

A fact-checking gate that reruns the automated checks listed for a development task and reports which checks passed, failed, or still need a person. It is one step in a larger development process.

In plain words
What is it for?
Use it after development or when you need to repeat task verification. Failed checks are written to a verification report and handed to the x-fix process.
Why use it?
It replaces assumptions about whether a change works with recorded command results and a complete list of failures.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the x-dev-pipeline plugin — 25 skills shipped together

Good fit Use it after development or when you need to repeat task verification. Failed checks are written to a verification report and handed to the x-fix process.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ktkid/x-dev-pipeline/x-verify
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 KtKID/x-dev-pipeline --skill x-verify
Clone the repo
git clone --depth 1 https://github.com/KtKID/x-dev-pipeline

Made for: Claude Code.

Or install x-dev-pipeline, the plugin that ships this one along with the rest of its 25 skills.

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 x-verify

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/ktkid/x-dev-pipeline/x-verify"><img src="https://agentmods.dev/badge/skills/ktkid/x-dev-pipeline/x-verify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 550 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.
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 $0.00055 $0.00550
Opus 5.5 $0.00022 $0.00220
Sonnet 5.5 $0.00011 $0.00110
Haiku 4.5 $0.00006 $0.00055

Measured 1mo ago against content hash e59ac0ba49b0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

x-verify 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 1mo 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.

evals/x-pipeline-efficiency-workspace/iteration-0/eval-10-voice-chain-end-to-end/without_skill/run-1/workspace/skills/x-verify/SKILL.md · 39 lines

What it actually says

x-verify · Gate ①

输入

task 的 dev-checklist.md、归属 spec.md 和 dev-report*.md fenced verify 块。req2 按 Requirement 限定验收 Scenario;req3 直接按 Scenario 限定范围。引擎复跑命令、比较 exit/输出并检查当前 task 的证据覆盖。

流程

  1. 运行 python3 tools/xdev.py verify <task-dir> --json。
  2. exit 0:输出 pass N / manual M 回执,不写报告。
  3. exit 1:读取 fail 的 output_tail 与 uncovered,必要时用 --only <id> 复跑一个块;写 reports/verify/verify-report-<timestamp>.md,将完整 failure 清单交 x-fix。
  4. exit 2:按错误来源分诊,不递增 fix-counter。
    • dev-report 的 verify 块格式、id 冲突、cwd 路径问题 → 退回 x-dev。
    • dev-checklist.md 缺失或表头不可解析 → 退回对应 x-req2/x-req3。
    • req2 Scenario 缺父 Requirement 或验证标记 → 退回 x-spec2。
    • req3 Scenario 缺测试层、名称重名或 checklist 回指悬空 → 退回 x-spec3/x-req3。 这两类是 task / spec 产物的问题,退给 x-dev 无从下手。

约束

  • 只报告命令与覆盖事实;代码质量由 x-qa-gate 处理。
  • fail 时跑完全部 auto 块后一次交付完整清单。
  • req3 的 unit/smoke Scenario 必须由 auto 块覆盖;e2e Scenario 必须由 auto 或 manual 块声明。
  • reports/.fix-counter、三轮上限和 x-fix 批量修复协议保持现有定义。

回执

🛡️ Gate① verify ✅ · pass N · manual M 待人工
🛡️ Gate① verify ❌ · fail N · uncovered M → x-fix
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. 1mo ago Changed · +6 lines e59ac0ba49b0
  2. 2mo ago First seen · 33 lines · 55 tokens per session scan A 868a5b2eae3e

Subscribe to this mod's changes

x-verify is a skill published in the GitHub repository KtKID/x-dev-pipeline (12 stars, last pushed 17d ago), licensed MIT. It adds 55 tokens to every session and 550 once invoked, about $0.0002 per session on Opus 5.5. 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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