Compare Files

file.compare_files

ProductionBounded custom (Class B)Deterministicverifiablefastv1.0.0

File inputNo network

Overview

You pass two managed file references and we compare them deterministically. Choose size (byte length), hash (default SHA-256), binary (first differing byte offset), or text (first differing line, with optional line-ending normalization). We always return each file's size and hash. Read-only — we never modify your files. Do not use this when you need a full unified diff or patch.

You need a deterministic answer to "are these files the same?" without pulling bytes into your agent context or building diff logic yourself.

Reliability

Deterministic: the same two files always give the same answer for size, hash, byte-offset, and line comparisons. We read at most 100 MiB per file, and anything larger fails validation — split or trim the file before you retry. A file reference resolves only inside your own tenant, so a reference belonging to someone else, or one that has already expired, comes back as a validation error telling you the reference is not accessible; upload the file again and call us with the fresh reference. An unsupported hashAlgorithm or textEncoding also fails validation, and retrying the same request will not help — fix the parameter first.

Context footprint

Returns equal, per-file size and hash, and the first difference when they diverge. A successful call costs 5 execution credits.

When to use it

When you have two managed file references and need equality or the first difference.

When you need a full line-by-line patch or side-by-side diff view.

Scope

Note

Compares two managed files by size, hash, binary bytes, or text content.

Non-goals

Does not produce a full diff patch
Does not modify either file
Does not fetch external URLs

Properties

IdempotentRetry safeStreaming supportedFile input supportedRequires external service

Capabilities

analysishashing

Cost & billing

Flat rate per invocation

MetercallsBillable onsuccessCost per call5 credits

File handling

Accepts file_refProduces file_refMax input100 MBMax file size100 MB

File limits

Constraints this skill applies to your input and generated files. The “Limited by” column shows the static source of each cap; none of these can be raised by upgrading your plan.

Limit	Value	Limited by
Maximum size per input file	50 MiB	Platform maximum

How we handle your data

Protected temp storage

What this means

This skill may temporarily store files or intermediate data only to complete execution. Temporary data is protected and automatically deleted.

Squillify guarantees

Runs inside Squillify
This skill runs inside Squillify.
Payloads are not sent to an external service by this skill.
Temporary execution only storage
Squillify does not permanently store submitted payloads.
Telemetry records metadata only, not submitted content.
Submitted payloads are not used for training.
Submitted payloads are not reviewed by humans.
This skill does not target sensitive data.
The response may contain submitted or transformed content.

Your responsibility

Squillify does not determine whether submitted content is sensitive. Your application is responsible for deciding what data it is allowed to submit. Your application is responsible for securing the response.

Read the Microskill Data Handling Policy

Input schema

Field	Type	Required	Description
leftFileRef	string	Yes	Managed left-hand file reference resolved inside the current tenant, read up to 100 MiB.
rightFileRef	string	Yes	Managed right-hand file reference resolved inside the current tenant, read up to 100 MiB.
mode	string	No	Comparison mode; omit it for hash.
hashAlgorithm	string	No	Digest used for per-file hash fields and hash mode; omit it for SHA-256.
textEncoding	string	No	Character encoding for text mode; omit it for UTF-8.
normalizeLineEndings	boolean	No	Whether CRLF and CR become LF before text comparison; omit it for false.

Output schema

Field	Type	Required	Description
equal	boolean	Yes	True when the files match under the chosen mode.
mode	string	Yes	Comparison mode that was applied.
left	object	Yes	Closed file summary with size and digest under the chosen hashAlgorithm.
right	object	Yes	Closed file summary with size and digest under the chosen hashAlgorithm.
differences	array	Yes	Bounded array of 0 or 1 closed first-difference objects; empty when equal is true.

API contract

POST /v1/execute

curl

curl -sS -X POST "$BASE/v1/execute" -H "Authorization: Bearer $KEY" -H 'Content-Type: application/json' -d '{"skillKey":"file.compare_files","input":{"leftFileRef":"squillify://files/f-a","rightFileRef":"squillify://files/f-b"}}'

Integrations

TypeScript SDK

import { Squillify } from "@squillify/sdk";

const sq = new Squillify({ apiKey: process.env.SQUILLIFY_API_KEY });

const { output } = await sq.execute("file.compare_files", {"rightFileRef":"squillify://files/f-b","leftFileRef":"squillify://files/f-a","mode":"hash"});

Errors

Code	HTTP	Retryable	Description
VALIDATION_ERROR	400	No	The request payload failed schema validation.
UNAUTHORIZED	401	No	Missing or invalid API key.
SKILL_NOT_ACCESSIBLE	403	No	The API key is not granted access to this skill.
SKILL_NOT_AVAILABLE_FOR_PLAN	403	No	This skill is not included in your current plan.
PLAN_ELIGIBILITY_UNAVAILABLE	503	Yes	Plan eligibility could not be decided. Retry after backoff.
SKILL_NOT_FOUND	404	No	The requested skill or version does not exist.
TENANT_RATE_LIMITED	429	Yes	Request rate limit exceeded. Retry after backoff.
QUOTA_EXCEEDED	429	Yes	Plan quota exhausted. Retryable once the quota period resets.
EXECUTION_TIMEOUT	504	Yes	Execution exceeded the allowed time budget.

Other limits

Limit	Value
Recommended inline bytes	32 KiB

Limitations

Does not produce a full diff patch
Does not modify either file
Does not fetch external URLs
Generating a human-readable unified diff
Comparing files outside your managed file references

How to call

POST /v1/execute (requires authentication)

Request bodyjson

{
  "skillKey": "file.compare_files",
  "input": {
    "rightFileRef": "squillify://files/f-b",
    "leftFileRef": "squillify://files/f-a",
    "mode": "hash"
  }
}

Examples

Identical files match by SHA-256 hash

Inputjson

{
  "rightFileRef": "squillify://files/f-b",
  "leftFileRef": "squillify://files/f-a",
  "mode": "hash"
}

Expected outputjson

{
  "equal": true,
  "left": {
    "sizeBytes": 5,
    "hash": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
  },
  "mode": "hash",
  "right": {
    "sizeBytes": 5,
    "hash": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
  },
  "differences": []
}

Text mode reports the first differing line