codebase-cost-estimator SKILL.md skillA

codebase-cost-estimator from lazyisefficient/agentic-os is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add lazyisefficient/agentic-os/codebase-cost-estimator@git:20260716.7c29779

Pins git:20260716.7c29779 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
lazyisefficient/agentic-os
Path
.claude/skills/codebase-cost-estimator/SKILL.md
Versions recorded
5
Latest version
git:20260716.7c29779, committed Jul 16, 2026
First version recorded
Jun 19, 2026
Size
5,637 bytes
Repository stars
17
License
MIT

Estimate the full development cost of an existing codebase from lines of code, architectural complexity, and team-composition overhead. Use for 'how much would this cost to build', 'what did this codebase cost', development-cost or build-cost estimates, calendar-time estimates, and Claude/AI ROI on a delivered codebase. Estimates by measured LOC and complexity, not by ticket volume.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Codebase Cost Estimator

Estimate what it cost (or would cost) to build an existing codebase. The estimate is driven by
**measured lines of code and complexity** — not by ticket count, story points, or feature lists.
Always present a range with explicit assumptions; never a single number.

## Inputs

- A checked-out codebase (local path or repo) you can run `git`, `cloc`/`tokei`, and file counts against.
- Optional: project README/status for version and scope context.
- Optional: git history, for the AI-ROI step (commit timestamps).

## Process

1. **Measure the codebase.** Count LOC by language and separate production code, tests, and docs.
   Prefer a real counter over guessing:
   ```bash
   # whichever is installed; both break LOC down by language
   tokei .        # or: cloc --vcs=git .
   ```
   Record per-language LOC, test LOC, doc LOC, and total. Note complexity drivers: advanced
   frameworks, system-level/GPU/native code, and third-party integrations. These map directly to
   the productivity bands in `references/rates.md`.

2. **Convert LOC to raw developer-hours.** For each code category, divide its LOC by the
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add lazyisefficient/agentic-os/codebase-cost-estimator@sha256:93a53bb5c8034762

The line at the top of this page pins the label git:20260716.7c29779, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_jz7ydo6lfqjllezn.svg)](https://markdownregistry.com/a/art_jz7ydo6lfqjllezn)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Jun 19, 2026 and Jul 16, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
git:20260716.7c29779 latest2026-07-16 7c29779 5,637 BA view · diff
git:20260713.e86d2822026-07-13 e86d282 5,627 BA view · diff
git:20260623.d4273122026-06-23 d427312 5,658 BA view · diff
git:20260619.f551cb72026-06-19 f551cb7 5,523 BA view · diff
git:20260619.61661d02026-06-19 61661d0 5,910 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5637 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

lazyisefficient/agentic-os · 17 stars · license MIT · pushed 2026-10-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_jz7ydo6lfqjllezn
GET https://markdownregistry.com/api/v1/resolve?ref=lazyisefficient/agentic-os/codebase-cost-estimator
GET https://markdownregistry.com/api/v1/blob/93a53bb5c803476223438b40a6290d968e1b45159ad09cb48bedb3bea2661fa8

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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