ftb-mcp: Skill for Claude Code

.claude/skills/ftb-print/SKILL.md

ftb-print is a skill for Claude Code from mouchar/ftb-mcp. It costs 197 tokens per session (4,137 once invoked), scanned A, original, Apache-2.0.

A tool for producing a printable ancestor chart, also called a pedigree chart, as an SVG and PDF for one person and their direct ancestors.

In plain words
What is it for?
Use it to make an A1 family-tree poster with parent lines, marriage dates, and older generations.
Why use it?
It turns genealogy data into a single-page diagram that is easier to print and read than a raw family list.

Skill for Claude Code

Written for Claude Code: ${CLAUDE_SKILL_DIR} variable.

This is mouchar/ftb-mcp's own configuration. It tells Claude Code how to work on ftb-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ftb-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to mouchar/ftb-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/mouchar/ftb-mcp/master/.claude/skills/ftb-print/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/mouchar/ftb-mcp

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ftb-print

README.md
[![agentmods](https://agentmods.dev/badge/skills/mouchar/ftb-mcp/ftb-print/github.svg)](https://agentmods.dev/skills/mouchar/ftb-mcp/ftb-print)
Your own site
<a href="https://agentmods.dev/skills/mouchar/ftb-mcp/ftb-print"><img src="https://agentmods.dev/badge/skills/mouchar/ftb-mcp/ftb-print/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ftb-print

Your own site · 80×15
<a href="https://agentmods.dev/skills/mouchar/ftb-mcp/ftb-print"><img src="https://agentmods.dev/badge/skills/mouchar/ftb-mcp/ftb-print.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 197 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,137 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00197 $0.04137
Opus 5.5 $0.00079 $0.01655
Sonnet 5.5 $0.00039 $0.00827
Haiku 4.5 $0.00020 $0.00414

Measured 7d ago against content hash 209e1f3e8b2a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ftb-print scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/ftb_print.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/ftb-print/SKILL.md · 274 lines

How it starts

The opening of the file, as written. The whole thing — 274 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ftb-print – printable ancestor chart

Produce a print-ready ancestor chart for one person, in the user's language.

The chart contains the person plus their direct ancestors only: no siblings, no children, no spouses from other marriages. The person sits below their parents, and from the parents outward every older generation sits further left (mother's line) or right (father's line). Couples are joined by vertical lines with the marriage date rotated 90° beside them.

Tooling

Everything bulky runs through scripts/ftb_print.py, so the ancestor data never has to pass through the conversation:

FTBP="uv run -q --no-project --with mcp --with pillow --with cairosvg python ${CLAUDE_SKILL_DIR}/scripts/ftb_print.py"

collect starts the ftb server as defined in the nearest .mcp.json (current directory or above). If the server is configured elsewhere (user settings, another name), write a one-server .mcp.json-style file and pass --mcp-config PATH (and --server NAME).

command what it does
$FTBP collect ID --out DIR/tree.json --locale L [--depth N] Pulls the pedigree (max 15 generations) and every ancestor's facts and marriages, normalizes names/dates/places into the chart language, then prints the summary.
$FTBP summary DIR/tree.json [--page A0] [--depth N] Ancestor count, generations, leaves, records to check, and a per-depth table with the font size the chart would print at on A1.
$FTBP table DIR/tree.json [--depth N] [--flagged-only] [--out FILE] Markdown verification table in the chart language.
$FTBP set DIR/tree.json AHN FIELD "VALUE" Fix one field. It applies to every occurrence of the same person, and the table then shows the edit with ✎ and the old value.
$FTBP render DIR/tree.json --out DIR/chart.svg [--depth N] Writes the SVG plus a PDF next to it, and reports page orientation and the effective font size.

Console output of the script is in English and meant for you. The table and the chart are in the chart language. Everything you tell the user is in the conversation language.

Read the full file on GitHub · 274 lines

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 274 lines · 197 tokens per session scan A 209e1f3e8b2a

Subscribe to this mod's changes

ftb-print is a skill published in the GitHub repository mouchar/ftb-mcp (2 stars, last pushed 7d ago), licensed Apache-2.0. It adds 197 tokens to every session and 4,137 once invoked, about $0.0008 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-12.

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