md-skill-tree-architect

md-skill-tree-architect is a skill for Claude Code, Codex from frankxai/awesome-gamification-agent-skills. It costs 58 tokens per session (283 once invoked), scanned A, original, MIT.

A design guide for skill trees stored as Markdown files, with optional YAML metadata. It defines learning tracks, prerequisites, tests, rewards, and validation rules.

In plain words
What is it for?
It helps create learning paths, capability trees, node cards, rank-up trials, rewards, ledger examples, and checks for unreachable nodes or circular prerequisites.
Why use it?
It provides a portable, version-controlled structure for progression systems that can be reviewed and edited like code.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It helps create learning paths, capability trees, node cards, rank-up trials, rewards, ledger examples, and checks for unreachable nodes or circular prerequisites.

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Install with agentmods
npx agentmods add skills/frankxai/awesome-gamification-agent-skills/md-skill-tree-architect
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add frankxai/awesome-gamification-agent-skills --skill md-skill-tree-architect
Clone the repo
git clone --depth 1 https://github.com/frankxai/awesome-gamification-agent-skills

Made for: Claude Code, Codex.

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 md-skill-tree-architect

README.md
[![agentmods](https://agentmods.dev/badge/skills/frankxai/awesome-gamification-agent-skills/md-skill-tree-architect/github.svg)](https://agentmods.dev/skills/frankxai/awesome-gamification-agent-skills/md-skill-tree-architect)
Your own site
<a href="https://agentmods.dev/skills/frankxai/awesome-gamification-agent-skills/md-skill-tree-architect"><img src="https://agentmods.dev/badge/skills/frankxai/awesome-gamification-agent-skills/md-skill-tree-architect/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 md-skill-tree-architect

Your own site · 80×15
<a href="https://agentmods.dev/skills/frankxai/awesome-gamification-agent-skills/md-skill-tree-architect"><img src="https://agentmods.dev/badge/skills/frankxai/awesome-gamification-agent-skills/md-skill-tree-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 283 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 $0.00058 $0.00283
Opus 5 $0.00029 $0.00142
Sonnet 5 $0.00012 $0.00057
Haiku 4.5 $0.00006 $0.00028

Measured 11d ago against content hash a3e4b7cb43ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

md-skill-tree-architect 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 11d 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.

skills/md-skill-tree-architect/SKILL.md · 49 lines

What it actually says

Markdown Skill Tree Architect

Use this skill to design portable skill trees that live in git as Markdown.

Workflow

  1. Define the audience and capability promise.
  2. Choose axes and ranks.
  3. Create track files.
  4. Create node files with prerequisites and acceptance criteria.
  5. Create trial files for rank-up.
  6. Create reward files that unlock useful work.
  7. Create a ledger event example.
  8. Add validation checks for unreachable nodes and circular prerequisites.

Frontmatter Minimum

---
id: stable-id
type: track | node | trial | reward
status: draft | active | deprecated
visibility: public | unlisted | private
version: 0.1.0
---

Quality Gates

  • Every node must teach or unlock one capability.
  • Every trial must have objective acceptance criteria.
  • Every reward must change what can be done.
  • Keep lore names separate from platform names.

Output Shape

  • Folder map.
  • Track outline.
  • Node cards.
  • Trial cards.
  • Reward cards.
  • Validation checklist.
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. 11d ago First seen · 49 lines · 58 tokens per session scan A a3e4b7cb43ca

Subscribe to this mod's changes

md-skill-tree-architect is a skill published in the GitHub repository frankxai/awesome-gamification-agent-skills (0 stars, last pushed 3d ago), licensed MIT. It adds 58 tokens to every session and 283 once invoked, about $0.0003 per session on Opus 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 2026-09-01.

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