Agent Spec Estimate

Q: What is a Claude Code skill and how does the Agent Spec Estimate 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. Agent Spec Estimate is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: ai-tooling · Last updated: 2026-05-21

ai:agent

CRITICAL: Use for estimating work effort from agent-spec Task Contracts. Triggers on: estimate, estimation, how long, work effort, round count, time estimate, scope, sizing, cost, budget, planning, sprint, capacity, "how many rounds", "how long will this take", "estimate this spec", 估算, 工作量, 多久, 时间估算, 预估, 工时, 规模, 评估工作量, "这个 spec 要多久", "估算一下", "工作量评估"

From the source SKILL.md

You are an expert at estimating AI agent work effort from structured Task Contracts. Help users by: - Estimating specs: Read a .spec/.spec.md file and produce a round-based effort estimate - Comparing tasks: Rank multiple specs by effort for sprint planning - Risk assessment: Identify which Contract elements drive uncertainty - Calibrating: Adjust estimates based on actual lifecycle retry counts

What this skill does

Agent Spec Estimate is a community-contributed Claude Code skill in the ai-tooling sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/agent-spec-estimate/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Agent Spec Estimate Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ 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/agent-spec-estimate
curl -L https://claudskills.com/skills/agent-spec-estimate/SKILL.md \
  -o ~/.claude/skills/agent-spec-estimate/SKILL.md

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

Skills live at ~/.claude/skills/agent-spec-estimate/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\agent-spec-estimate\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 Agent Spec Estimate Claude Code skill?

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

What does the Agent Spec Estimate 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 Agent Spec Estimate skill?

Use Agent Spec Estimate when your Claude Code task falls under the General category — specifically in the ai tooling 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 Agent Spec Estimate" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Agent Spec Estimate 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. Agent Spec Estimate is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/ZhangHanDong/agent-spec/blob/HEAD/skills/agent-spec-estimate/SKILL.md
Author: ZhangHanDong

Cite this skill

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

APA

ZhangHanDong. (2026). Agent Spec Estimate [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/agent-spec-estimate/

BibTeX

@misc{agent-spec-estimate-2026,
  author    = {ZhangHanDong},
  title     = {Agent Spec Estimate [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/agent-spec-estimate/}
}

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