Founder CFO

Before you start: read this whole install prompt, tell me in a few lines what this skill does and what installing it involves, and wait for my go-ahead before you do anything else. Prerequisites: Python 3.8 or newer, to run the bundled unit_economics.py tool (standard library only, nothing to pip install). No API key, no account, no paid service. Install "Founder CFO" for me. It is a CFO for a business idea: it gathers the inputs into founder/numbers.json, runs the bundled Python tool unit_economics.py to compute contribution per sale, the real margin, break-even per day, year 1 month by month, cash needed and payback, then adds a plain-words CFO note to founder/cfo.md. Repository: https://github.com/Jakeschincariol/founder-skill (the skill is the whole skills/founder-cfo/ folder at the pinned commit: SKILL.md, example.json, unit_economics.py) Pinned version: install the code at commit fd9385b0cfe1b96bebce3898fbd506d73eff5a9d exactly. Do not substitute a newer version. If this commit is unreachable, stop and tell me. 1. Clone https://github.com/Jakeschincariol/founder-skill into a temporary folder, check out commit fd9385b0cfe1b96bebce3898fbd506d73eff5a9d, and copy the skills/founder-cfo/ folder from that checkout. Then compare every file in the folder with the fingerprints recorded for this listing on 2026-10-18: [FINGERPRINTS] - SKILL.md: SHA-256 38cc75b484758bff0fb333f7703d0658a0969349d10bd664539f7a06e96917ce - example.json: SHA-256 e0a44bdec2dde6c7929a7540f012bfa5e07d4b3357787ef9a33aa2d9cfcafc96 - unit_economics.py: SHA-256 2df2cf18e87c992859f04bfb671827e76c4695b780023b56e75019c24a395ffc If a file does not match, it changed since the listing was prepared: do not install it yet, tell me what you found and let me decide. 2. Read SKILL.md in full (and every other file in the folder) and tell me in plain words: what the skill does when used, which services it connects to, whether it reads or sends any personal information or keys, and anything that seems unusual. Stop on any red flag and tell me before going further. Confirm these points from the files: - The skill folder holds three files: SKILL.md, example.json (an example input, a matcha café) and unit_economics.py. The Python tool uses the standard library only (argparse, json, math, sys), reads one local JSON file and writes one local Markdown file. It makes no network calls, reads no credentials and no environment variables, and installs nothing. - When used, the numbers come from you (quotes, invoices, leases, supplier lists) or from public prices you can check, with the source written next to the number in founder/cfo-sources.md; estimates must be marked as estimates. The skill sends nothing to any service: all computation is local. - Outputs stay in your project: founder/numbers.json, founder/cfo.md and founder/cfo-sources.md. The file states once that this is not financial, tax or legal advice and that an accountant should check the structure, payroll and tax before money moves. - Nothing is sent anywhere during installation itself; the only download is the skill folder from GitHub at the pinned commit. 3. When I say "yes, install", install it as a skill: copy the whole folder into the agent's skills directory, in a folder named "founder-cfo", keeping every file (SKILL.md, example.json, unit_economics.py). 4. Verify with no network calls: frontmatter valid, files in place. 5. Report what was installed, where, and what I still need to do myself (for example: install Python 3.8 or newer if it is missing (the bundled tool needs it at use time; installing the skill itself needs nothing else), sign in or create an account (none is needed), provide any API key (none is needed); using the skill is a separate step that only starts when I ask for it). GitHub is optional: if I have a GitHub account or the gh CLI, you may use it; otherwise public access is fine. Never require it unless it's in the prerequisites above. Rules: don't touch anything outside the temp folder and the install target. If anything looks off, stop and ask me.