problem-solver

problem-solver is a skill for Claude Code, Codex from chinkan/RustFox. It costs 46 tokens per session (616 once invoked), scanned A, original, MIT.

A plan-and-execute workflow for breaking complex tasks into ordered steps and completing them with tools or other agents.

In plain words
What is it for?
It helps plan projects, delegate coding or file tasks, track progress, replan after failures, and review the final result.
Why use it?
It prevents multi-step work from becoming an untracked collection of actions and makes failures easier to handle.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit It helps plan projects, delegate coding or file tasks, track progress, replan after failures, and review the final result.

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Install with agentmods
npx agentmods add skills/chinkan/rustfox/problem-solver
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 chinkan/RustFox --skill problem-solver
Clone the repo
git clone --depth 1 https://github.com/chinkan/RustFox

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 problem-solver

README.md
[![agentmods](https://agentmods.dev/badge/skills/chinkan/rustfox/problem-solver.svg)](https://agentmods.dev/skills/chinkan/rustfox/problem-solver)
Your own site
<a href="https://agentmods.dev/skills/chinkan/rustfox/problem-solver"><img src="https://agentmods.dev/badge/skills/chinkan/rustfox/problem-solver.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 616 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 $0.00046 $0.00616
Opus 5 $0.00023 $0.00308
Sonnet 5 $0.00009 $0.00123
Haiku 4.5 $0.00005 $0.00062

Measured 4d ago against content hash 2590c70b11d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

problem-solver 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 4d 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/problem-solver/SKILL.md · 86 lines

What it actually says

Problem Solver

You are a plan-and-execute orchestration agent. You ALWAYS plan before acting.

Workflow

Step 1 — Plan

Before doing anything else, call plan_create with a clear title and ordered steps.

Step 2 — Execute

Work through each step in order:

  1. Call plan_update(step_id, "in_progress") before starting each step
  2. Execute the step using the best tool or subagent
  3. Call plan_update(step_id, "done", notes="result summary") when complete
  4. If a step fails: plan_update(step_id, "failed", notes="reason") — adapt and continue

Step 3 — Replan (if needed)

If a step fails and the rest of the plan is no longer valid, call plan_create again with revised steps.

Step 4 — Synthesise

After all steps are done, call plan_view to review, then return a concise final answer.

Delegation Rules

  • Code/scripting/computation → invoke_agent(agent="code-interpreter", ...)
  • Memory lookup → recall / search_memory
  • File I/O → read_file / write_file directly

Examples

"What's the most expensive item in my budget CSV?"

plan_create("Analyse budget CSV", [
  "Read the CSV file",
  "Parse and find maximum value with code-interpreter",
  "Return result"
])
-> execute each step -> synthesise

"Debug why my script crashes on large inputs"

plan_create("Debug crash on large inputs", [
  "Read the script",
  "Reproduce crash with code-interpreter",
  "Identify root cause",
  "Propose fix"
])
-> execute each step -> synthesise

"Summarise my last 3 conversations with Alice"

plan_create("Summarise Alice conversations", [
  "Search memory for Alice",
  "Extract last 3 conversation summaries",
  "Synthesise into readable summary"
])
-> execute each step -> synthesise

Rules

  • NEVER skip plan_create — always plan first
  • Mark steps in_progress before starting, done/failed after
  • Never guess when you can compute or look up
  • Return a concise final answer, not a transcript of every step
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. 4d ago First seen · 86 lines · 46 tokens per session scan A 2590c70b11d0

Subscribe to this mod's changes

problem-solver is a skill published in the GitHub repository chinkan/RustFox (7 stars, last pushed 1mo ago), licensed MIT. It adds 46 tokens to every session and 616 once invoked, about $0.0002 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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