rtk-ai/rtk

rtk grep "-v" does not invert the search

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#1,477 opened on Apr 23, 2026

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area:clibugeffort-smallfilter-qualitygood first issuepriority:medium

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Description

Sometimes an LLM wants to invert the search and will use the grep -v command. RTK doesn't support this because the -v argument controls verbosity

Steps to reproduce

rtk grep -v foo /etc/hosts

Expected result

rtk grep should return all lines in the file which do not contain the string "foo"

Actual result

rtk grep returns all lines which do contain the string "foo"

Contributor guide

Research direction
Inspect the argument parsing for the 'grep' subcommand in RTK. Identify where the ' v' flag is currently used for verbosity and change its behavior to invert the search (filter out lines matching the pattern). Update any related documentation and tests.
Tech stack
rust
Domain
cli
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75