google-github-actions / google-github-actions/run-gemini-cli
Use positional argument instead of deprecated --prompt flag
Nobody has claimed this yet.
- Dominant language
- TypeScript
- Stars
- 2.1k
- Forks
- 285
- Avg merge
- 8h 8m
- Merged PRs (30d)
- 1
Description
Summary
The Gemini CLI has deprecated the --prompt (-p) flag in favor of positional arguments. This action currently uses:
gemini --yolo --prompt "${PROMPT}" --output-format json
This produces a deprecation warning in CI logs:
The --prompt (-p) flag has been deprecated and will be removed in a future version. Please use a positional argument for your prompt. See gemini --help for more information.
Suggested Fix
Change the CLI invocation to use a positional argument:
gemini --yolo --output-format json "${PROMPT}"
Or pipe via stdin if multiline prompts are a concern:
echo "${PROMPT}" | gemini --yolo --output-format json
Impact
- Currently: Warning noise in CI logs
- Future: Will break when the flag is removed
Environment
- Action version: v0.1.20
- Gemini CLI: latest (as of 2026-01-29)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Locate the action's Gemini CLI invocation that currently passes --prompt, then review how the prompt value is assembled and executed. Replace the deprecated flag with the supported invocation and verify that the action runs without the deprecation warning, including prompts containing multiple words or lines.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- github-actions, typescript
- Domain
- ci-cd, devops
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 45/100