development-estimation
Use when estimating time, effort, or complexity for features or projects - provides structured estimation workflows with breakdowns, risks, and confidence intervals.
- Installs
- 90
- Last 24h
- —
- Trending rank
- —
- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/nickcrew/claude-cortex --skill development-estimation- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads development-estimation automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Development Estimation
Overview
Create consistent, defensible estimates by breaking scope into components, identifying risks, and providing confidence intervals.
When to Use
- Estimating feature or project scope
- Providing effort or complexity estimates
- Delivering risk-aware breakdowns
Avoid when:
- The task is trivial or a rough gut-check is sufficient
- Requirements are unknown and need discovery first
Quick Reference
| Task | Load reference |
|---|---|
| Estimation workflow | skills/development-estimation/references/estimate.md |
Workflow
- Define scope and estimation type (time/effort/complexity).
- Load the estimation reference for structure.
- Break into components and dependencies.
- Add risks and confidence intervals.
- Deliver estimate with assumptions.
Output
- Estimate with breakdown and confidence interval
- Assumptions, risks, and validation notes
Common Mistakes
- Estimating without clear scope
- Ignoring risk and dependency factors
- Overstating precision beyond available data
FAQ
What does the development-estimation skill do?
Use when estimating time, effort, or complexity for features or projects - provides structured estimation workflows with breakdowns, risks, and confidence intervals.
How do I install development-estimation?
Run npx skills add https://github.com/nickcrew/claude-cortex --skill development-estimation in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/development-estimation/ (personal) or .claude/skills/development-estimation/ (project).
Which AI agents can use development-estimation?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is development-estimation safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains development-estimation?
It is published by nickcrew in nickcrew/claude-cortex. It has 90 recorded installs.
More from nickcrew/claude-cortex
react-performance-optimization
nickcrew/claude-cortex
React performance optimization patterns using memoization, code splitting, and efficient rendering strategies. Use when optimizing slow React applications, reducing bundle size, or improving user experience with large datasets.
owasp-top-10
nickcrew/claude-cortex
OWASP Top 10 security vulnerabilities with detection and remediation patterns. Use when conducting security audits, implementing secure coding practices, or reviewing code for common security vulnerabilities.
ui-design-aesthetics
nickcrew/claude-cortex
Generates high-quality, non-generic UI designs with a focus on performance, progressive disclosure, and distinctive aesthetics.
threat-modeling-techniques
nickcrew/claude-cortex
Open the skill to read its SKILL.md instructions.
token-efficiency
nickcrew/claude-cortex
Compressed communication using symbols and abbreviations. Use when context is limited or brevity is needed.
helm-chart-patterns
nickcrew/claude-cortex
Open the skill to read its SKILL.md instructions.
Popular other skills
hyperframes-cli
heygen-com/hyperframes
The HyperFrames CLI by job - scaffold, check, look at frames, edit the timeline, preview, render locally or in the cloud, publish, project history - plus reading its JSON and recovering from build or render failures.
triage
mattpocock/skills
Move issues and external PRs through a state machine of triage roles, categorise, verify, grill if needed, and write agent-ready briefs.
ask-matt
mattpocock/skills
Ask which skill or flow fits your situation. A router over the skills in this repo.
to-questionnaire
mattpocock/skills
Turn a decision you can't fully answer into a questionnaire for someone else to fill in.
loop-me
mattpocock/skills
Grill me about specs for the workflows I want to build, within this workspace.