gron

gron flattens JSON into one assignment per path so you can inspect unfamiliar payloads with line-oriented tools like grep, diff, and sed. It can read files, URLs, or stdin, and it can rebuild filtered assignments back into valid JSON.

• Explore unfamiliar API responses or config blobs by surfacing the full path for matching keys and values.
• Filter, diff, or slice JSON with standard text tools, then reconstruct the kept assignments back into JSON with --ungron.
• Emit each path and value as a JSON stream row with --json, or process newline-delimited JSON objects with --stream.

• File, URL, and stdin inputs plus explicit exit codes make it easy to drop into shell inspection loops without interactive prompts.
• --json gives agents a structured [path, value] stream when the default assignment text would be awkward to parse.
• Best suited to discovery and quick extraction; the project itself warns that grep and sed style mutation pipelines are error-prone for durable automation.

• It is not a full query language like jq; its main strength is path discovery and coarse filtering, not complex JSON transforms.
• Default output is plain text assignments, so agents that need structured follow-up parsing should opt into --json or ungron the filtered result.