composio-large-outputs

A guide for retrieving large results from connected tools when the tool saves the real output in a file instead of returning it in the response.

In plain words
What is it for?
Use it when a result contains storedInFile=true: read the exact outputFilePath with the file-reading tool, then use that full content in the answer.
Why use it?
It prevents an assistant from mistaking a file pointer for the actual result or trying to answer from incomplete data.

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/evanyan22/loopengine/composio-large-outputs
Any agent
npx skills add evanyan22/loopengine --skill composio-large-outputs
Clone the repo
git clone --depth 1 https://github.com/evanyan22/loopengine

Made for: Claude Code, Codex.

Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 211 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00032 $0.00211
Opus 5 $0.00016 $0.00105
Sonnet 5 $0.00006 $0.00042
Haiku 4.5 $0.00003 $0.00021

Measured 2d ago against content hash 5ba423ec3a95, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

composio-large-outputs 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 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.

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.

core/system-skills/composio-large-outputs/SKILL.md · 26 lines

What it actually says

Gateway tools with a large result

Some gateway tools (Composio-sourced ones in particular) return a small pointer object instead of their real output when the actual result is too large to return inline:

{
  "successful": true,
  "storedInFile": true,
  "tokenCount": 10234,
  "outputFilePath": "/tmp/.../SOME_TOOL_OUTPUT_xxxxx.json"
}

When you see storedInFile: true in a tool result, the real data is not in that object — it's in the file at outputFilePath. Call system_read_file with that exact path to retrieve the actual content before answering. Don't guess at an answer, summarize from the pointer alone, or claim you don't have the data — read the file first.

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 · 26 lines · 32 tokens per session scan A 5ba423ec3a95

Subscribe to this mod's changes

composio-large-outputs is a skill published in the GitHub repository evanyan22/loopengine (2 stars, last pushed 2d ago), licensed MIT. It adds 32 tokens to every session and 211 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 2026-08-31.

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