foundations-ai-planning-search

foundations-ai-planning-search is a skill for Codex from vasilyu1983/AI-Agents-public. It costs 52 tokens per session (3,567 once invoked), scanned A, original, MIT.

A set of methods for planning actions and searching through possible solutions for AI agents. It covers approaches such as constraint solving, decision-tree search, and task planning.

In plain words
What is it for?
Use it to model tasks as states, actions, constraints, and goals, then create or check plans for agent systems.
Why use it?
It helps prevent agents from choosing invalid action sequences when tasks have dependencies, rules, or required conditions.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions subagents.

Good fit Use it to model tasks as states, actions, constraints, and goals, then create or check plans for agent systems.

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Install with agentmods
npx agentmods add skills/vasilyu1983/ai-agents-public/foundations-ai-planning-search
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 vasilyu1983/AI-Agents-public --skill foundations-ai-planning-search
Clone the repo
git clone --depth 1 https://github.com/vasilyu1983/AI-Agents-public

Made for: 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 foundations-ai-planning-search

README.md
[![agentmods](https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/foundations-ai-planning-search/github.svg)](https://agentmods.dev/skills/vasilyu1983/ai-agents-public/foundations-ai-planning-search)
Your own site
<a href="https://agentmods.dev/skills/vasilyu1983/ai-agents-public/foundations-ai-planning-search"><img src="https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/foundations-ai-planning-search/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 foundations-ai-planning-search

Your own site · 80×15
<a href="https://agentmods.dev/skills/vasilyu1983/ai-agents-public/foundations-ai-planning-search"><img src="https://agentmods.dev/badge/skills/vasilyu1983/ai-agents-public/foundations-ai-planning-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,567 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00052 $0.03567
Opus 5 $0.00026 $0.01784
Sonnet 5 $0.00010 $0.00713
Haiku 4.5 $0.00005 $0.00357

Measured 9d ago against content hash ce368e562ea7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

foundations-ai-planning-search 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 9d 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.

frameworks/shared-skills/skills/foundations-ai-planning-search/SKILL.md · 251 lines

How it starts

The opening of the file, as written. The whole thing — 251 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI Planning And Search Foundations

10 applied AI planning and search primitives for turning a problem into states, actions, constraints, heuristics, and plans. Use this when the hard part is problem formulation or explicit search over alternatives, not language fluency.

Contents


Quick Reference

Primitive Problem It Solves Key Parameters
Problem Formulation Vague tasks cannot be searched or verified State, actions, transition model, goal test, path cost
Uninformed Search Need complete baseline without domain heuristic Branching factor b; depth d; frontier policy
Heuristic Search Large state spaces need directed exploration Heuristic h(n); admissibility; consistency
Local Search State is large but path is irrelevant Neighborhood; objective; restart/schedule
Constraint Satisfaction Need assignments satisfying hard constraints Variables, domains, constraints, MRV/LCV, arc consistency
Adversarial Search Opponent actions affect outcomes Utility, depth, alpha-beta bounds, rollout policy
Classical Planning Need valid action sequence from symbolic preconditions/effects STRIPS/PDDL, progression/regression, plan graph
Hierarchical Planning Tasks decompose into reusable subplans Methods, subtasks, ordering constraints
Contingent / Belief-State Planning Partial observability or nondeterministic actions Belief state, sensing actions, policy vs sequence
Planner-Agent Integration LLM agent needs explicit plan validity and search boundaries Planner tool, state abstraction, verifier, replanning trigger

Read the full file on GitHub · 251 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. 9d ago First seen · 251 lines · 52 tokens per session scan A ce368e562ea7

Subscribe to this mod's changes

foundations-ai-planning-search is a skill published in the GitHub repository vasilyu1983/AI-Agents-public (87 stars, last pushed 10d ago), licensed MIT. It adds 52 tokens to every session and 3,567 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 2026-09-03.

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