ClaudSkills / Engineering / code-quality

Phase Close

Q: What is a Claude Code skill and how does the Phase Close skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Phase Close is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: code-quality · Last updated: 2026-06-08

type:audit type:review

Phase-level verification gate run at a v3.x phase boundary (the post-phase analog of verify-plan). Spawns three independent full-context lenses in parallel — PM (honesty-auditor) + Principal-SDE (code-reviewer at phase altitude) + Architect — to review the INTEGRATED phase against its exit criteria, catching cross-PR drift the per-PR VALIDATE structurally cannot see. Produces a CLOSEABLE / NEEDS-WORK verdict + a phase-close record, and feeds the ghost-protocol effectiveness loop. Replaces ad-hoc external reviews (which lack context and hallucinate).

From the source SKILL.md

At a v3.x phase boundary (e.g. v3.2-close after its last wave), before declaring the phase done or bumping the plugin version, spawn three independent full-context, in-substrate lenses in parallel to verify the integrated phase against its exit criteria. This catches what the per-PR / per-wave VALIDATE cannot, by construction:

What this skill does

Phase Close is a community-contributed Claude Code skill in the code-quality sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/phase-close/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Phase Close Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 97,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/phase-close
curl -L https://claudskills.com/skills/phase-close/SKILL.md \
  -o ~/.claude/skills/phase-close/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/phase-close/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/phase-close/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\phase-close\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Phase Close Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/phase-close/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Phase Close skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Phase Close skill?

Use Phase Close when your Claude Code task falls under the Engineering category — specifically in the code quality area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Phase Close" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Phase Close skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Phase Close is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/shashankcm95/claude-power-loom/blob/HEAD/packages/skills/library/phase-close/SKILL.md
License: MIT
Author: shashankcm95

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

shashankcm95. (2026). Phase Close [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/phase-close/

BibTeX

@misc{phase-close-2026,
  author    = {shashankcm95},
  title     = {Phase Close [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/phase-close/}
}

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