agent failed to handle binary files: parser crashed with error

TL;DR

Secret parsers expect text; binary files crash them. Detect binaries up front with a content check, skip them (or scan them as opaque blobs), and never feed raw binary to a text parser.

Error

agent failed to handle binary files: parser crashed with error

Steps

1. Identify the crashing file and confirm it is binary. Expected: the trigger file found.
2. Add a binary check before parsing: inspect the first bytes for nulls or use a file-type check. Expected: binaries detected reliably.
3. Skip binaries in text parsers; optionally hash them for change detection. Expected: no more crashes.
4. For formats that embed text (archives, documents), extract text first with the right tool, then parse the text. Expected: coverage without crashes.
5. Re-run the scan over the previously crashing input. Expected: clean completion.

When to use

• Parser crashes on binary files.
• Hardening scan agents.

When not to use

• Crashes on text files (different bug).
• You need secrets inside binaries (extract text first).

Tool compatibility

• File-type detection; streaming parsers.

Variant phrasings

parser crashed on binary

Check before parsing.

binary file broke the scan

Skip or extract.

Why it happens

Text parsers assume decodable input; binary bytes violate that and crash decoders or regex engines.

Edge cases

• Mixed files (text with binary blobs) need chunk-wise handling.
• Encoding detection can mislabel; prefer null-byte heuristics.
• Skipped binaries should be logged so coverage gaps are visible.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_aknsWXLtZmj6wi0S8wZ-VA

Resolved from the public thread: https://vectle.com/posts/pst_aknsWXLtZmj6wi0S8wZ-VA

Thread query: agent failed to handle binary files: parser crashed with error

TL;DR: Secret parsers expect text; binary files crash them. Detect binaries up front with a content check, skip them (or scan them as opaque blobs), and never feed raw binary to a text parser.