agentsop-code-execution-decision

agentsop-code-execution-decision is a skill for Claude Code, Codex from agentsope/SkillAlchemy. It costs 141 tokens per session (5,924 once invoked), scanned A, original, MIT.

A decision guide for choosing between writing and running code or reasoning in ordinary language when an agent handles a task.

In plain words
What is it for?
It helps decide how to handle arithmetic, exact transformations, deterministic data work, open-ended synthesis, and the execution-and-retry loop.
Why use it?
It reduces calculation and data-manipulation mistakes by reserving code execution for precise, checkable operations and prose for judgment.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for aider. Also seen: positional $N argument; built for aider.

Good fit It helps decide how to handle arithmetic, exact transformations, deterministic data work, open-ended synthesis, and the execution-and-retry loop.

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Install with agentmods
npx agentmods add skills/agentsope/skillalchemy/agentsop-code-execution-decision
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 agentsope/SkillAlchemy --skill agentsop-code-execution-decision
Clone the repo
git clone --depth 1 https://github.com/agentsope/SkillAlchemy

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 agentsop-code-execution-decision

README.md
[![agentmods](https://agentmods.dev/badge/skills/agentsope/skillalchemy/agentsop-code-execution-decision/github.svg)](https://agentmods.dev/skills/agentsope/skillalchemy/agentsop-code-execution-decision)
Your own site
<a href="https://agentmods.dev/skills/agentsope/skillalchemy/agentsop-code-execution-decision"><img src="https://agentmods.dev/badge/skills/agentsope/skillalchemy/agentsop-code-execution-decision/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 agentsop-code-execution-decision

Your own site · 80×15
<a href="https://agentmods.dev/skills/agentsope/skillalchemy/agentsop-code-execution-decision"><img src="https://agentmods.dev/badge/skills/agentsope/skillalchemy/agentsop-code-execution-decision.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 141 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,924 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 149
    Skill allows unbounded resource consumption (API calls, storage, compute). Without rate limits or quotas, a compromised or misbehaving agent can cause denial-of-service or cost overruns.
    Fix: Set explicit rate limits, timeouts, and resource quotas for API calls, file operations, and compute. Implement circuit breakers for runaway loops.
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 $0.00141 $0.05924
Opus 5.5 $0.00056 $0.02370
Sonnet 5.5 $0.00028 $0.01185
Haiku 4.5 $0.00014 $0.00592

Measured 1mo ago against content hash 84a7f25f9f82, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agentsop-code-execution-decision 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.

skills/agentsop-code-execution-decision/SKILL.md · 395 lines

How it starts

The opening of the file, as written. The whole thing — 395 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code-Execution Decision — emit-code-vs-reason

One-liner: LMs are unreliable calculators but reliable coders. When the answer needs determinism and precision — arithmetic, exact data manipulation, deterministic transforms — emit code and run it. When the answer needs judgment, taste, or open-ended synthesis, reason in natural language. The cost of getting this gate wrong is silent: prose arithmetic hallucinates a plausible-looking wrong number, and over-coding a judgment task burns a sandbox round-trip for nothing.

This is an enhancement overlay. DSPy already gives you dspy.ProgramOfThought (PoT) — the mechanism for write-then-execute. What it does not give you is the decision rubric for when to reach for it. That rubric is this skill. Cross-link the sibling [[agentsop-output-format-by-model]] (which decides how code-shaped content should be serialized) and [[agentsop-test-fix-loop]] (which closes the execute → error → retry loop).


1. 何时激活 (When to activate)

Activate this skill before committing a step to a reasoning strategy whenever the task has a verifiable, deterministic core — or whenever you catch an agent doing arithmetic in prose.

Trigger Signal
Arithmetic / math "compute the compound interest", "what's 17.5% of $4,392.18", multi-step word problems, unit conversions, date deltas
Precise data manipulation "sort these 240 rows by the third column", "dedupe and count", "join these two lists on id", "parse this CSV and sum column B"
Deterministic transforms regex extraction, string reformatting, base conversion, hashing, sorting, set operations
Symbolic / combinatorial "how many distinct permutations", "solve this system of equations", calendar/scheduling math
You see a model doing math in prose "Let me add: 1,204 + 8,991 + ... = 10,195" — almost always worth a code check
Choosing a DSPy module deciding between ChainOfThought and ProgramOfThought for a signature [dspy.ai/learn/programming/modules/]

Read the full file on GitHub · 395 lines

Files

What ships with it

3 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. 1mo ago First seen · 395 lines · 141 tokens per session scan A 84a7f25f9f82

Subscribe to this mod's changes

agentsop-code-execution-decision is a skill published in the GitHub repository agentsope/SkillAlchemy (445 stars, last pushed 14d ago), licensed MIT. It adds 141 tokens to every session and 5,924 once invoked, about $0.0006 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 2026-08-30.

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