code-interpreter

A guide for running Python, JavaScript, or TypeScript code and shell commands in a secure sandbox with session files.

In plain words
What is it for?
Use it to prototype code, run debugging experiments, install packages, manage sandbox files, and publish generated outputs.
Why use it?
It lets an agent test logic, investigate bugs, and check results without relying only on unexecuted reasoning.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/aws-samples/sample-strands-agent-with-agentcore/code-interpreter
Any agent
npx skills add aws-samples/sample-strands-agent-with-agentcore --skill code-interpreter
Clone the repo
git clone --depth 1 https://github.com/aws-samples/sample-strands-agent-with-agentcore

Made for: Claude Code, Codex.

Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,607 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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 $0.00025 $0.03607
Opus 5 $0.00013 $0.01803
Sonnet 5 $0.00005 $0.00721
Haiku 4.5 $0.00003 $0.00361

Measured 2d ago against content hash 2fbb189d72d4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-interpreter scanned grade A with 1 finding 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 2d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **Network:** Internet access available (can use `requests`, `urllib`, `curl`)
chatbot-app/agentcore/skills/code-interpreter/SKILL.md · 406 lines

How it starts

The opening of the file, as written. The whole thing — 406 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Interpreter

A general-purpose code execution environment powered by AWS Bedrock AgentCore Code Interpreter. Run code, execute shell commands, and manage files in a secure sandbox.

Available Tools

  • execute_code(code, language, output_filename): Execute Python, JavaScript, or TypeScript code.
  • execute_command(command): Execute shell commands.
  • file_operations(operation, paths, content): Read, write, list, or remove files in the mounted session workspace.

Tool Parameters

execute_code

Parameter Type Required Default Description
code string Yes Code to execute. Use print() for text output.
language string No "python" "python", "javascript", or "typescript"
output_filename string No "" File to publish as a durable session file. Code must save a file with this exact name.

execute_command

Parameter Type Required Description
command string Yes Shell command to execute (e.g., "ls -la", "pip install requests").

file_operations

Parameter Type Required Description
operation string Yes "read", "write", "list", or "remove"
paths list For read/list/remove File paths. read: ["file.txt"], list: ["."], remove: ["old.txt"]
content list For write Entries with path and text: [{"path": "out.txt", "text": "hello"}]

tool_input Examples

execute_code — text output

{
  "code": "import pandas as pd\ndf = pd.DataFrame({'A': [1,2,3], 'B': [4,5,6]})\nprint(df.describe())",
  "language": "python"
}

execute_code — generate chart

{
  "code": "import matplotlib\nmatplotlib.use('Agg')\nimport matplotlib.pyplot as plt\nimport numpy as np\nx = np.linspace(0, 10, 100)\nplt.figure(figsize=(10,6))\nplt.plot(x, np.sin(x))\nplt.title('Sine Wave')\nplt.savefig('sine.png', dpi=300, bbox_inches='tight')\nprint('Done')",
  "language": "python",
  "output_filename": "sine.png"
}

Read the full file on GitHub · 406 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. 2d ago First seen · 406 lines · 25 tokens per session scan A 2fbb189d72d4

Subscribe to this mod's changes

code-interpreter is a skill published in the GitHub repository aws-samples/sample-strands-agent-with-agentcore (191 stars, last pushed 6d ago), licensed MIT. It adds 25 tokens to every session and 3,607 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.