Borrowing it
Nothing to install: this file belongs to rjenks/pf2e-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.
curl -O https://raw.githubusercontent.com/rjenks/pf2e-mcp/main/.claude/skills/pf2e-character-builder/SKILL.mdgit clone --depth 1 https://github.com/rjenks/pf2e-mcpWrote 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.
[](https://agentmods.dev/skills/rjenks/pf2e-mcp/pf2e-character-builder)<a href="https://agentmods.dev/skills/rjenks/pf2e-mcp/pf2e-character-builder"><img src="https://agentmods.dev/badge/skills/rjenks/pf2e-mcp/pf2e-character-builder/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.
<a href="https://agentmods.dev/skills/rjenks/pf2e-mcp/pf2e-character-builder"><img src="https://agentmods.dev/badge/skills/rjenks/pf2e-mcp/pf2e-character-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00060 | $0.07341 |
| Opus 5.5 | $0.00024 | $0.02936 |
| Sonnet 5.5 | $0.00012 | $0.01468 |
| Haiku 4.5 | $0.00006 | $0.00734 |
Grade A, and why
pf2e-character-builder 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 1mo ago.
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.
How it starts
The opening of the file, as written. The whole thing — 499 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Building a PF2e character with pf2e-mcp
This skill is the conversational playbook for the pf2e-mcp tools. It does not
contain rules content itself -- PF2e content changes on a near-weekly cadence
via errata, and the whole point of the rules_* / build_* tools is that
they're regenerated from the current official data, so they're a better source
of truth than recalled training knowledge. Always call a tool instead of
answering a rules or eligibility question from memory.
Tool namespaces
rules_*(rules_search,rules_get_entry,rules_related,rules_explain,rules_data_version,rules_list_variant_rules): general reference lookup, independent of any character.build_*discovery and math (build_list_ancestries,build_list_backgrounds,build_list_classes,build_list_available_feats,build_list_ability_boost_options,build_list_skill_increase_options,build_check_prerequisite,build_validate_build,build_calculate_derived_stats,build_get_level_up_choices,build_list_available_spells,build_list_equipment): everything that answers "what can this character do".build_character_*(build_character_schema,build_validate_character,build_character_at_level,build_import_pathbuilder,build_export_pathbuilder): the character file -- its shape, its validity, and conversion in and out of Pathbuilder.pfs_*: Organized Play adventure lookup and chronicle validation.
The character file
A character is one YAML file and you edit it in place. Not a JSON blob you carry in your head across the conversation -- write the file early, keep writing to it, and read it back when you need it.
characters/AshKordun-Orc-Cleric/AshKordun.pf2e.yaml
The folder is the character's name, ancestry and class -- each section PascalCase, the sections joined with hyphens, so a hyphen always means a section boundary and a two-word name never looks like one.
Everything else about that character lives in the same folder: rendered sheets,
chronicle scans, a portrait. The portrait can be stored as a standalone image
file (e.g. DrozaTheArbiter.jpeg) or embedded directly into identity.portrait in the YAML
as a base64 data URI (data:image/jpeg;base64,...).
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.
- 1mo ago Changed · +25 lines 6d5cde32a012
- 1mo ago Changed · +102 lines 6b174da8ac63
- 1mo ago Changed · +28 lines a2af44626a81
- 1mo ago First seen · 344 lines · 60 tokens per session scan A 2d362ebef65c
pf2e-character-builder is a skill published in the GitHub repository rjenks/pf2e-mcp (3 stars, last pushed 8d ago), licensed Apache-2.0. It adds 60 tokens to every session and 7,341 once invoked, about $0.0002 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 2026-08-31.
Other skills, from other repositories
local-ai-agents
Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
next-cache-components-adoption
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…
chat-pet-sprite-creation
Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.
cpu-profile-analysis
Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…
next-cache-components-optimizer
Optimize the meaningful UI available immediately from a Next.js route on an initial load (hard navigation) or named client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route and entry point at a time; the shipped test then guards…