quantitative-estimates SKILL.md skillA
quantitative-estimates from h2oai/marina is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add h2oai/marina/quantitative-estimates@git:20261104.7999338Pins git:20261104.7999338 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- h2oai/marina
- Path
plugins/claude-code/skills/quantitative-estimates/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261104.7999338, committed Nov 4, 2026
- Size
- 4,880 bytes
- Repository stars
- 11
- License
- Apache-2.0
How to compute numbers you will state or forecast — calc for exact arithmetic, quant fit for a series, quant buckets for numeric ranges.
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
<!-- Generated from seeds/skills/quantitative-estimates.md by scripts/sync-claude-plugin.ts; edit the source. --> # Procedure — numbers you will state, compare or forecast Every number you report comes from a tool, not from your head. Three rank-0 commands cover it, with no model call and no code sandbox: - `calc <expression>` — exact arithmetic, units, statistics (mathjs) - `quant fit <values> …` — a series and a horizon → mean, sd, quantiles - `quant buckets …` — a distribution and a set of ranges → the probability of each range ## Step 1 — compute with `calc` Statements run in order and share variables (`;` separates them). End with the value you want. | Need | Write | |---|---| | Percent change | `calc (112.5 - 104.2) / 104.2 * 100` | | Percentage points vs percent | `calc 4.1 - 3.8` (points) and `calc (4.1 - 3.8) / 3.8 * 100` (percent) | | Share of a total | `calc 120 * 15%` | | Compound growth | `calc 250 * (1 + 3%)^10` | | Growth rate (CAGR) between two values | `calc (380 / 250)^(1/7) - 1` | | Periods to reach a level | `calc log(2) / log(1.035)` | | Annualise a monthly rate | `calc (1 + 0.4%)^12 - 1` | …
Read the whole file at its exact version.
How to install
mdr add h2oai/marina/quantitative-estimates@sha256:4155022231a3e25cThe line at the top of this page pins the label git:20261104.7999338, 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.
[](https://markdownregistry.com/a/art_x4qdxw3hgcp3fey5)
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Versions
The registry has recorded 1 version of this file, committed on Nov 4, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4880 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
h2oai/marina · 11 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_x4qdxw3hgcp3fey5 GET https://markdownregistry.com/api/v1/resolve?ref=h2oai/marina/quantitative-estimates GET https://markdownregistry.com/api/v1/blob/4155022231a3e25c17eacd3c5413bfdff5a72429d814f800200ae8cd6f82cac0
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.