Date Calculator
aipoch/medical-research-skills
Calculate medical date windows including gestational age, estimated delivery dates, and follow-up visit scheduling.
Calculate cash runway, burn, and the zero-cash date — and whether you're default alive or dead.
MITAuto-check passed
Install Runway Calculator
$ npx skills add mohitagw15856/pm-claude-skills --skill runway-calculator -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mohitagw15856/pm-claude-skills runway-calculator --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/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/runway-calculator .claude/skills/runway-calculator && 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 "runway-calculator" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/runway-calculator into .claude/skills/runway-calculator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "runway-calculator", 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/mohitagw15856/pm-claude-skills/tree/main/skills/runway-calculatorType 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 mohitagw15856/pm-claude-skills --skill runway-calculator -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mohitagw15856/pm-claude-skills runway-calculator --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/runway-calculator .agents/skills/runway-calculator && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "runway-calculator" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/runway-calculator into .agents/skills/runway-calculator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "runway-calculator", 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 mohitagw15856/pm-claude-skills --skill runway-calculator -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mohitagw15856/pm-claude-skills runway-calculator --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/runway-calculator .cursor/skills/runway-calculator && 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 "runway-calculator" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/runway-calculator into .cursor/skills/runway-calculator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "runway-calculator", 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/mohitagw15856/pm-claude-skills.git --path skills/runway-calculator--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 mohitagw15856/pm-claude-skills --skill runway-calculator -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mohitagw15856/pm-claude-skills runway-calculator --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/runway-calculator .gemini/skills/runway-calculator && 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 "runway-calculator" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/runway-calculator into .gemini/skills/runway-calculator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "runway-calculator", 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 mohitagw15856/pm-claude-skills runway-calculatorInstalls 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 mohitagw15856/pm-claude-skills --skill runway-calculator -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/runway-calculator .github/skills/runway-calculator && 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 "runway-calculator" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/runway-calculator into .github/skills/runway-calculator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "runway-calculator", 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 mohitagw15856/pm-claude-skills --skill runway-calculator -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mohitagw15856/pm-claude-skills runway-calculator --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/runway-calculator .opencode/skills/runway-calculator && 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 "runway-calculator" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/runway-calculator into .opencode/skills/runway-calculator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "runway-calculator", 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
runway-calculator- GitHub stars
- 1.4k
- Token cost
- ~841 tokens
- SKILL.md length
- 410 words
- Files
- 2 (incl. scripts)
- Skills in repo
- 1,348
- Repo updated
- First seen
- Licence
- MIT
At a glance
Calculate cash runway, burn, and the zero-cash date — and whether you're default alive or dead.
- Asked to work out runway
- SKILL.md covers Required Inputs, Output Format, Programmatic Helper and Quality Checks, plus 3 more sections
- Runs Python scripts from its folder; calls python3
- The money runs out
What it does
Runway Calculator is an agent skill from mohitagw15856/pm-claude-skills. Calculate cash runway, burn, and the zero-cash date — and whether you're default alive or dead. Use when asked to work out runway, monthly burn, when the money runs out, or how much to raise/cut to reach a target. Produces a computed runway summary (net burn, months of runway, zero-cash date, default alive/dead) plus what it takes to extend it.
Its SKILL.md is about 840 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts (for example `scripts/runway.py`).
The repository describes itself as: 1255 professional Agent Skills for Claude, ChatGPT, Gemini, Cursor & Codex — PRDs, postmortems, leases, medical bills, layoffs, go-bags, new countries. Plain markdown, MIT, in… The licence is MIT.
When your agent uses it
- Asked to work out runway
- The money runs out
- How much to raise/cut to reach a target
Example prompts
- “/runway-calculator”
Requirements
- Python 3
What it can do on your machine
Read from SKILL.md and the folder at commit 1cbf1f0. 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
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python3
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
Runway Calculator loads about 841 tokens when it runs. Until then it costs about 91 tokens; SKILL.md has 410 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); the scripts in this folder are not scanned.
SKILL.md
The full file from mohitagw15856/pm-claude-skills at commit 1cbf1f0, republished under its MIT licence (© mohitagw15856). 410 words, ~841 tokens.
Download SKILL.mdSave it as
.claude/skills/runway-calculator/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- runway-calculator
- description
- Calculate cash runway, burn, and the zero-cash date — and whether you're default alive or dead. Use when asked to work out runway, monthly burn, when the money runs out, or how much to raise/cut to reach a target. Produces a computed runway summary (net burn, months of runway, zero-cash date, default alive/dead) plus what it takes to extend it.
Runway Calculator Skill
For any company spending more than it makes, one number governs everything: how many months of cash are left. This skill computes net burn, runway, and the zero-cash date from your cash and P&L, judges whether you're default alive or dead (Paul Graham's test — would you reach profitability on current cash at current growth?), and shows the raise-or-cut needed to hit a target runway.
Required Inputs
Ask for these only if they aren't already provided:
- Cash in bank (today).
- Monthly revenue and monthly expenses (or net monthly burn directly).
- Monthly growth rate of revenue, if you want the default-alive check.
- Target — a runway you want to reach (e.g. 18 months) or a raise you're considering.
Output Format
Runway: [company]
1. The numbers (computed via the helper):
| Metric | Value |
|---|---|
| Net monthly burn | |
| Cash in bank | |
| Runway (months) | |
| Zero-cash date | |
| Default alive? | yes / no |
2. Default alive or dead — on current cash and growth, do you reach profitability before the cash runs out? State it plainly; it's the question investors ask first.
3. To extend it — the concrete moves and their effect: cut $X/mo → +Y months; raise $Z → +W months; or the growth rate needed to turn default-alive. Show the trade-off.
4. Caveats — flag if burn is rising (these numbers assume flat burn), and the buffer to keep (don't plan to zero — most raises take months).
Programmatic Helper
scripts/runway.py (stdlib only) computes runway and the zero-cash date:
# in.json: {"cash": 600000, "monthly_revenue": 40000, "monthly_expenses": 110000, "revenue_growth": 0.08}
python3 scripts/runway.py in.json
python3 scripts/runway.py in.json --jsonShow full SKILL.md (172 more words)Show less
Quality Checks
- Net burn = expenses − revenue (not gross spend) — and the zero-cash date is an actual date
- The default-alive/dead question is answered explicitly
- "To extend it" gives concrete cut/raise/growth options with their month impact
- Flags that the figures assume flat burn if burn is actually growing
- Recommends a cash buffer rather than planning to literally zero
Anti-Patterns
- Do not report runway off gross spend — net burn (after revenue) is the real number
- Do not assume flat burn silently — if headcount/spend is rising, say the runway is optimistic
- Do not plan to zero cash — a raise takes 3–6 months; runway should be measured to "must-raise-by," not "broke"
- Do not ignore growth — a fast-growing company can be default alive even while burning
- Do not present one scenario — show the cut-vs-raise-vs-grow trade-off
Based On
Startup cash-management practice — net burn, runway, and "Default Alive or Dead" (Paul Graham, Y Combinator).
Example Trigger Phrases
- "Work out our runway."
- "What's our monthly burn?"
- "When does the money run out?"
- "How much do we need to raise or cut?"
© mohitagw15856, 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 1 other file (scripts) in skills/runway-calculator of mohitagw15856/pm-claude-skills.
- SKILL.md
- scripts/runway.py
Open the folder on GitHubat commit 1cbf1f0
Compare with similar skills
Runway Calculator 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 |
|---|---|---|---|---|---|---|
| Runway Calculator this skillmohitagw15856/pm-claude-skills | 1.4k | — | ~841 | Automated safety check: Pass | MIT | |
| Date Calculatoraipoch/medical-research-skills | 1.9k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Petty Cash Managementsickn33/agentic-awesome-skills | 47k | 1 repos | ~5.7k | Automated safety check: Pass | MIT | |
| Cost Burnruvnet/ruflo | 74k | — | ~824 | Automated safety check: Notes | MIT | |
| Runway Burn Analysisahmadvh/octochains | 377 | — | ~344 | Automated safety check: Pass | Custom licence | |
| Zero Trustsickn33/agentic-awesome-skills | 47k | 2 repos | ~3.2k | Automated safety check: Pass | MIT |
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Questions about Runway Calculator
What does Runway Calculator do?
Calculate cash runway, burn, and the zero-cash date — and whether you're default alive or dead. Runway Calculator is an agent skill from mohitagw15856/pm-claude-skills. Calculate cash runway, burn, and the zero-cash date — and whether you're default alive or dead.
When should I use Runway Calculator?
Runway Calculator fits situations like: asked to work out runway; the money runs out; how much to raise/cut to reach a target.
How do I install Runway Calculator in Claude Code?
Run `npx skills add mohitagw15856/pm-claude-skills --skill runway-calculator -a claude-code`. Or copy the skill folder (skills/runway-calculator in mohitagw15856/pm-claude-skills) into .claude/skills/runway-calculator in your project. Claude Code loads it when a task matches its description.
How do I install Runway Calculator in Codex?
Run `npx skills add mohitagw15856/pm-claude-skills --skill runway-calculator -a codex`. Or copy the skill folder (skills/runway-calculator in mohitagw15856/pm-claude-skills) into .agents/skills/runway-calculator in your project. Codex loads it when a task matches its description.
Can I use Runway Calculator 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 mohitagw15856/pm-claude-skills --skill runway-calculator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/runway-calculator, .gemini/skills/runway-calculator, .github/skills/runway-calculator and .opencode/skills/runway-calculator in your project.
What does Runway Calculator need to run?
Going by SKILL.md and its folder, Runway Calculator needs Python for the scripts in its folder and the command-line tools its instructions call (python3). Our summary lists: Python 3.
Does Runway Calculator 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 Runway Calculator 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Runway Calculator use?
Runway Calculator 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 Runway Calculator use?
About 841 tokens (SKILL.md is roughly 3.4k 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 Runway Calculator?
Skills that share tags, products or a category with Runway Calculator: Date Calculator (aipoch/medical-research-skills, 1.9k stars), Petty Cash Management (sickn33/agentic-awesome-skills, 47k stars), Cost Burn (ruvnet/ruflo, 74k stars) and Runway Burn Analysis (ahmadvh/octochains, 377 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Runway Calculator?
mohitagw15856 (a GitHub user) maintains it in mohitagw15856/pm-claude-skills, which has 1,434 GitHub stars. The repository holds 1,348 skills in this directory. The repository was last updated on October 9, 2026.
Source: mohitagw15856/pm-claude-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.