Foundry Spec Properties
aviggiano/security
Turn whitepapers, protocol specs, and public documentation into Foundry property tests.
A skill your agent uses when preparing executive reports, evaluating investments, or calculating ROI/break-even/payback period.
Install Roi Analyzer
$ npx skills add nicepkg/ai-workflow --skill roi-analyzer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install nicepkg/ai-workflow roi-analyzer --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/nicepkg/ai-workflow.git skills-src && mkdir -p .claude/skills && cp -r skills-src/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer .claude/skills/roi-analyzer && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "roi-analyzer" agent skill from https://github.com/nicepkg/ai-workflow/tree/main/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer into .claude/skills/roi-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "roi-analyzer", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/nicepkg/ai-workflow/tree/main/workflows/marketing-pro-workflow/.claude/skills/roi-analyzerType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add nicepkg/ai-workflow --skill roi-analyzer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install nicepkg/ai-workflow roi-analyzer --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nicepkg/ai-workflow.git skills-src && mkdir -p .agents/skills && cp -r skills-src/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer .agents/skills/roi-analyzer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "roi-analyzer" agent skill from https://github.com/nicepkg/ai-workflow/tree/main/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer into .agents/skills/roi-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "roi-analyzer", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add nicepkg/ai-workflow --skill roi-analyzer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install nicepkg/ai-workflow roi-analyzer --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nicepkg/ai-workflow.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer .cursor/skills/roi-analyzer && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "roi-analyzer" agent skill from https://github.com/nicepkg/ai-workflow/tree/main/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer into .cursor/skills/roi-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "roi-analyzer", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/nicepkg/ai-workflow.git --path workflows/marketing-pro-workflow/.claude/skills/roi-analyzer--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add nicepkg/ai-workflow --skill roi-analyzer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install nicepkg/ai-workflow roi-analyzer --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nicepkg/ai-workflow.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer .gemini/skills/roi-analyzer && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "roi-analyzer" agent skill from https://github.com/nicepkg/ai-workflow/tree/main/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer into .gemini/skills/roi-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "roi-analyzer", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install nicepkg/ai-workflow roi-analyzerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add nicepkg/ai-workflow --skill roi-analyzer -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/nicepkg/ai-workflow.git skills-src && mkdir -p .github/skills && cp -r skills-src/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer .github/skills/roi-analyzer && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "roi-analyzer" agent skill from https://github.com/nicepkg/ai-workflow/tree/main/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer into .github/skills/roi-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "roi-analyzer", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add nicepkg/ai-workflow --skill roi-analyzer -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install nicepkg/ai-workflow roi-analyzer --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nicepkg/ai-workflow.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer .opencode/skills/roi-analyzer && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "roi-analyzer" agent skill from https://github.com/nicepkg/ai-workflow/tree/main/workflows/marketing-pro-workflow/.claude/skills/roi-analyzer into .opencode/skills/roi-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "roi-analyzer", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
roi-analyzer- GitHub stars
- 285
- Token cost
- ~1.7k tokens
- SKILL.md length
- 555 words
- Files
- 3
- Skills in repo
- 61
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when preparing executive reports, evaluating investments, or calculating ROI/break-even/payback period.
- Works in 4 steps: ROI (Return on Investment) → Break-Even Point → Payback Period → …
- Preparing executive reports
- SKILL.md covers When to Use This Skill, Core Identity, Core Financial Metrics (Quick… and Quick Start Example, plus 7 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Roi Analyzer is an agent skill from nicepkg/ai-workflow. Use when preparing executive reports, evaluating investments, or calculating ROI/break-even/payback period. 30-minute analysis (87.5% time saving). Includes scenario analysis.
Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `REFERENCE.md` and `prpm.json`).
It sits in Documents & Office, covering Report writing. The repository describes itself as: 🚀 170+ pre-built skills for Claude Code, Cursor, Codex & 14+ AI tools. Stop re-teaching your AI the same things. One command → instant domain expertise. Marketing, SEO, Trading… The licence is MIT.
When your agent uses it
- Preparing executive reports
- Evaluating investments
- Calculating ROI/break-even/payback period
Example prompts
- “/roi-analyzer”
Workflow steps
4 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit d167b41. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Roi Analyzer loads about 1.7k tokens when it runs. Until then it costs about 47 tokens; SKILL.md has 555 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from nicepkg/ai-workflow at commit d167b41, republished under its MIT licence (© nicepkg). 555 words, ~1,733 tokens.
Download SKILL.mdSave it as
.claude/skills/roi-analyzer/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- roi-analyzer
- description
- Use when preparing executive reports, evaluating investments, or calculating ROI/break-even/payback period. 30-minute analysis (87.5% time saving). Includes scenario analysis.
ROI Analyzer - Executive Financial Analysis Partner
Purpose: Deliver rapid, rigorous financial analysis for investment decisions, turning 4 hours of spreadsheet work into 30 minutes of strategic insight with 3-scenario modeling and clear recommendations.
When to Use This Skill
Use this skill when the user's request involves:
- Executive reporting - Financial summaries for leadership or board meetings
- Investment evaluation - Analyzing project viability, returns, and risks
- Phase transitions - Phase 0 → Phase 1 decisions based on ROI/conversion
- Budget approval - Justifying investments with quantified financial returns
- Financial forecasting - 3-year revenue, cost, and profitability projections
- Scenario planning - Best/Realistic/Worst case analysis with break-even points
Core Identity
You are an executive financial analyst that delivers decision-ready investment analysis in 30 minutes (87.5% time saving vs. spreadsheet work), with 3-scenario modeling, break-even thresholds, and clear INVEST/REVIEW/REJECT recommendations.
Core Financial Metrics (Quick Reference)
1. ROI (Return on Investment)
Formula: ROI = (Net Profit / Total Investment) × 100%
Targets:
- ✅ INVEST: ROI > 100% (realistic case)
- ⚠️ REVIEW: ROI 50-100%
- ❌ REJECT: ROI < 50%
Example:
Investment: 100M KRW
Revenue: 200M KRW
Operating Costs: 50M KRW
Net Profit: 200M - 50M - 100M = 50M KRW
ROI: (50M / 100M) × 100% = 50% ⚠️ REVIEW2. Break-Even Point
Formula (Project): Break-Even = Investment / Monthly Net Profit
Formula (Conversion): Break-Even Rate = Investment / Potential Revenue
Targets:
- ✅ INVEST: Break-even < 50% of realistic target
- ⚠️ REVIEW: Break-even 50-70% (low margin for error)
- ❌ REJECT: Break-even > 70% (unrealistic)
Example:
Phase 0 Investment: 50M KRW
Phase 1 Contract: 200M KRW
Break-Even: 50M / 200M = 25% conversion needed ✅3. Payback Period
Formula: Payback = Investment / Monthly Net Profit
Targets:
- ✅ INVEST: Payback < 12 months
- ⚠️ REVIEW: Payback 12-24 months
- ❌ REJECT: Payback > 24 months
4. Scenario Analysis (Best/Realistic/Worst)
Purpose: Test assumptions and de-risk decisions by modeling multiple outcomes.
Decision Rule: If worst-case ROI ≥ 0%, investment is low-risk
Output Template:
| Case | Assumptions | Revenue | Profit | ROI | Assessment |
|---|---|---|---|---|---|
| Worst | [Pessimistic] | ⚠️ Risk level | |||
| Realistic | [Expected] | ✅ Target | |||
| Best | [Optimistic] | ✅ Upside |
Quick Start Example
Scenario: Phase 0 → Phase 1 Investment Decision
User: "Should we invest 50M KRW in a 1-month Phase 0 trial? Phase 1 contract would be 208M KRW if we convert."
Analysis:
## Phase 0 Investment Analysis
**Investment**: 50M KRW (1 month)
**Potential Revenue**: 208M KRW (Phase 1, if convert)
### Scenario Analysis
| Case | Conversion | Revenue | Profit | ROI |
|------|-----------|---------|--------|-----|
| **Worst** | 30% | 62.4M | 12.4M | 25% ⚠️ |
| **Realistic** | 70% | 145.6M | 95.6M | 191% ✅ |
| **Best** | 90% | 187.2M | 137.2M | 274% ✅ |
**Break-Even**: 27% conversion rate (very achievable)
**Decision**: ✅ INVEST
- Realistic ROI 191% is excellent
- Even worst-case 25% ROI is profitable
- Break-even 27% << realistic 70% (low risk)When to Apply Each Metric
| Situation | Primary Metric | Secondary | Why |
|---|---|---|---|
| All investments | ROI | Scenario Analysis | Foundation |
| Uncertain success | Break-Even | ROI | Risk assessment |
| Cash flow critical | Payback Period | ROI | Runway concerns |
| Strategic decisions | Scenario Analysis | All others | Risk modeling |
Show full SKILL.md (227 more words)Show less
Key Principles
Always Include:
- 3 scenarios (Best/Realistic/Worst), not just one optimistic case
- Break-even threshold to understand minimum success rate
- Time value (for 2+ year projects, apply discount rate)
- Operating costs (dev, ops, marketing, support) - not just investment
- Decision recommendation (INVEST/REVIEW/REJECT with clear reasoning)
Never:
- Use only "best case" (always model downside risk)
- Ignore operating costs (they compound over time)
- Forget sensitivity analysis (what if assumptions wrong?)
- Make decisions on ROI alone (consider payback, break-even)
Executive Summary Template
Use this for leadership presentations:
[Investment amount] achieves [ROI%] ROI at [conversion/growth rate].
Break-even occurs at [threshold], with payback in [months].
Investment is [recommended/not recommended] [because reason].Example:
50M KRW Phase 0 investment achieves 191% ROI at 70% conversion.
Break-even occurs at 27% conversion, with payback in 1 month.
Investment is strongly recommended because worst-case ROI (25%) is still profitable.Decision Matrix
✅ **INVEST** if:
- ROI > 100% (realistic case)
- Payback < 18 months
- Break-even < 50% of realistic target
- Worst-case ROI ≥ 0% (no loss scenario)
⚠️ **REVIEW** if:
- ROI 50-100%
- Payback 18-36 months
- High dependency on single assumption
- Requires negotiation to improve terms
❌ **REJECT** if:
- ROI < 50%
- Payback > 36 months
- Break-even requires unrealistic assumptions (>70% of target)Integration with Other Skills
This analyzer integrates with:
- market-strategy: Calculate ROI for each expansion stage (Q13-Q16 Trojan Horse path)
- strategic-thinking: Use SWOT/GAP analysis for qualitative investment context
- toss-patterns: Calculate ROI for viral loop investments (Pattern 4), ecosystem expansion (Pattern 6)
Next Steps
For Detailed Formulas: See REFERENCE.md for NPV, LTV, CAC, cohort analysis, sensitivity analysis
For Real-World Examples: See EXAMPLES.md for:
- 3-year SaaS projections
- Multi-variable sensitivity analysis
- Phase progression decisions
- Industry benchmarks (SaaS, E-commerce, Hardware)
For Advanced Topics: See REFERENCE.md for risk assessment framework, decision trees, contingency planning
Meta Note
After applying this analysis, always reflect:
- What assumptions are most critical? (Test with sensitivity analysis)
- What data gaps exist? (Customer interviews, market research needed?)
- What alternatives weren't considered? (Opportunity cost of "do nothing")
This reflection creates a virtuous cycle of continuous financial rigor.
For detailed usage and examples, see related documentation files.
© nicepkg, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 2 other files in workflows/marketing-pro-workflow/.claude/skills/roi-analyzer of nicepkg/ai-workflow.
- SKILL.md
- REFERENCE.md
- prpm.json
Open the folder on GitHubat commit d167b41
Compare with similar skills
Roi Analyzer next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Roi Analyzer this skillnicepkg/ai-workflow | 285 | — | ~1.7k | Automated safety check: Pass | MIT | |
| Foundry Spec Propertiesaviggiano/security | 144 | — | ~489 | Automated safety check: Pass | MIT | |
| Graphic EbookVarnan-Tech/opendirectory | 674 | — | ~5k | Automated safety check: Pass | MIT | |
| Make Photo Stamp ArchiveDlcccc71913/skill-make-photo-stamp-archive | 366 | — | ~1.3k | Automated safety check: Pass | MIT | |
| Make Tape Collagesherlyryn/make-tape-collage | 118 | — | ~4.7k | Automated safety check: Pass | MIT | |
| Ky Markdown RebuilderKyrieCheungYep/ky-markdown-rebuilder | 117 | — | ~5.7k | Automated safety check: Pass | None |
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Related
Categories
Questions about Roi Analyzer
What does Roi Analyzer do?
A skill your agent uses when preparing executive reports, evaluating investments, or calculating ROI/break-even/payback period. Roi Analyzer is an agent skill from nicepkg/ai-workflow. Use when preparing executive reports, evaluating investments, or calculating ROI/break-even/payback period.
When should I use Roi Analyzer?
Roi Analyzer fits situations like: preparing executive reports; evaluating investments; calculating ROI/break-even/payback period.
How do I install Roi Analyzer in Claude Code?
Run `npx skills add nicepkg/ai-workflow --skill roi-analyzer -a claude-code`. Or copy the skill folder (workflows/marketing-pro-workflow/.claude/skills/roi-analyzer in nicepkg/ai-workflow) into .claude/skills/roi-analyzer in your project. Claude Code loads it when a task matches its description.
How do I install Roi Analyzer in Codex?
Run `npx skills add nicepkg/ai-workflow --skill roi-analyzer -a codex`. Or copy the skill folder (workflows/marketing-pro-workflow/.claude/skills/roi-analyzer in nicepkg/ai-workflow) into .agents/skills/roi-analyzer in your project. Codex loads it when a task matches its description.
Can I use Roi Analyzer in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nicepkg/ai-workflow --skill roi-analyzer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/roi-analyzer, .gemini/skills/roi-analyzer, .github/skills/roi-analyzer and .opencode/skills/roi-analyzer in your project.
What does Roi Analyzer need to run?
SKILL.md names no scripts, command-line tools or credentials: Roi Analyzer is instructions for the agent only.
Does Roi Analyzer access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Roi Analyzer safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Roi Analyzer use?
Roi Analyzer is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Roi Analyzer use?
About 1.7k tokens (SKILL.md is roughly 6.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Roi Analyzer?
Skills that share tags, products or a category with Roi Analyzer: Foundry Spec Properties (aviggiano/security, 144 stars), Graphic Ebook (Varnan-Tech/opendirectory, 674 stars), Make Photo Stamp Archive (Dlcccc71913/skill-make-photo-stamp-archive, 366 stars) and Make Tape Collage (sherlyryn/make-tape-collage, 118 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Roi Analyzer?
nicepkg (a GitHub organization) maintains it in nicepkg/ai-workflow, which has 285 GitHub stars. The repository holds 61 skills in this directory. The repository was last updated on January 20, 2026.
Source: nicepkg/ai-workflow on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.