skill-117

skill-117 is a skill for Claude Code, Codex from legendtkl/agentic-skill-router. It costs 43 tokens per session (717 once invoked), scanned A, a copy of pddl-skills, MIT.

A set of utilities for reading PDDL planning files, generating classical action plans, checking whether they achieve their goals, and saving the results. PDDL is a standard language for describing planning problems.

In plain words
What is it for?
Use it to load planning domains and problems, synthesize sequential plans, validate goal satisfaction, and report when no plan exists.
Why use it?
It reduces the manual work of turning a formal problem into an ordered sequence of actions and checking whether that sequence is valid.

Skill for Claude CodeCodex

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

Good fit Use it to load planning domains and problems, synthesize sequential plans, validate goal satisfaction, and report when no plan exists.

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Install with agentmods
npx agentmods add skills/legendtkl/agentic-skill-router/skill-117
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 legendtkl/agentic-skill-router --skill skill-117
Clone the repo
git clone --depth 1 https://github.com/legendtkl/agentic-skill-router

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 skill-117

README.md
[![agentmods](https://agentmods.dev/badge/skills/legendtkl/agentic-skill-router/skill-117/github.svg)](https://agentmods.dev/skills/legendtkl/agentic-skill-router/skill-117)
Your own site
<a href="https://agentmods.dev/skills/legendtkl/agentic-skill-router/skill-117"><img src="https://agentmods.dev/badge/skills/legendtkl/agentic-skill-router/skill-117/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 skill-117

Your own site · 80×15
<a href="https://agentmods.dev/skills/legendtkl/agentic-skill-router/skill-117"><img src="https://agentmods.dev/badge/skills/legendtkl/agentic-skill-router/skill-117.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 717 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 98% copy Near-identical to another mod 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 $0.00043 $0.00717
Opus 5 $0.00022 $0.00358
Sonnet 5 $0.00009 $0.00143
Haiku 4.5 $0.00004 $0.00072

Measured 7d ago against content hash fac4837a4155, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

skill-117 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.

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.

Origin

This is a copy

98% identical to pddl-skills — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

experiments/dci-compare/skillrouter-skills/skill-117/SKILL.md · 141 lines

How it starts

The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Requirements for Outputs

General Guidelines

PDDL Files

  • Domain files must follow PDDL standard syntax.
  • Problem files must reference the correct domain.
  • Plans must be sequential classical plans.

Planner Behavior

  • Planning must terminate within timeout.
  • If no plan exists, return an empty plan or explicit failure flag.
  • Validation must confirm goal satisfaction.

PDDL Skills

1. Load Domain and Problem

load-problem(domain_path, problem_path)

Description:
Loads a PDDL domain file and problem file into a unified planning problem object.

Parameters:

  • domain_path (str): Path to PDDL domain file.
  • problem_path (str): Path to PDDL problem file.

Returns:

  • problem_object: A unified_planning.model.Problem instance.

Example:

problem = load_problem("domain.pddl", "task01.pddl")

Notes:

  • Uses unified_planning.io.PDDLReader.
  • Raises an error if parsing fails.

2. Plan Generation

generate-plan(problem_object)

Description: Generates a plan for the given planning problem using a classical planner.

Parameters:

  • problem_object: A unified planning problem instance.

Returns:

  • plan_object: A sequential plan.

Example:

plan = generate_plan(problem)

Notes:

  • Uses unified_planning.shortcuts.OneshotPlanner.
  • Default planner: pyperplan.
  • If no plan exists, returns None.

3. Plan Saving

save-plan(plan_object, output_path)

Description: Writes a plan object to disk in standard PDDL plan format.

Parameters:

  • plan_object: A unified planning plan.

  • output_path (str): Output file path.

Example:

save_plan(plan, "solution.plan")

Notes:

  • Uses unified_planning.io.PDDLWriter.
  • Output is a text plan file.

4. Plan Validation

validate(problem_object, plan_object)

Description: Validates that a plan correctly solves the given PDDL problem.

Parameters:

  • problem_object: The planning problem.
  • plan_object: The generated plan.

Read the full file on GitHub · 141 lines

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 · 141 lines · 43 tokens per session scan A fac4837a4155

Subscribe to this mod's changes

skill-117 is a skill published in the GitHub repository legendtkl/agentic-skill-router (5 stars, last pushed 3mo ago), licensed MIT. It adds 43 tokens to every session and 717 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to pddl-skills, differing in 3 lines, and is treated as a copy.

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