docs: document missing CLI flags

[harshil-mistry]

Summary

Adds six flags to the CLI reference table that are registered in config.ts but weren't documented: --policy, --admin-policy, --session-id, --session-file, --raw-output and --accept-raw-output-risk.

Details

All six are registered with .option(...) in packages/cli/src/config/config.ts and none carry hidden: true, so they already show up in gemini --help — the reference table was just behind.

The pair I'd draw attention to is --raw-output / --accept-raw-output-risk. --raw-output disables sanitization of model output, and its own description in the source warns "This can be a security risk if the model output is untrusted"; --accept-raw-output-risk exists solely to suppress that warning. I carried the warning into the table rather than describing the flag neutrally, since a reader deciding whether to use it needs that context.

--policy and --admin-policy matter because the table already links to the Policy Engine from the --allowed-tools row but never mentioned the flags that load policy files.

Descriptions are taken from the description fields in config.ts rather than written from scratch, lightly edited for the table (spelling out "for example", and using the table's existing bold-warning style). Rows are placed next to related flags: policy flags after --allowed-tools, session flags after --delete-session, output flags after --output-format. The diff is additive only — no existing row or the column alignment is touched.

Related Issues

Fixes #29012

How to Validate

Docs-only, verified by comparison:

1. Parsed every .option('<name>', { ... }) registration out of packages/cli/src/config/config.ts (they span multiple lines, so a plain grep misses some) and diffed the names against the flags in the reference table. That produced exactly these six, plus --acp, which I've handled separately.
2. Confirmed none of the six are hidden — only fake-responses, fake-responses-non-strict and record-responses set hidden: true — so all six really do appear in help output.
3. Checked each one's type in the source matches the type column I wrote.
4. Re-ran the comparison after the edit; the only remaining undocumented flags are the three hidden test ones, which shouldn't be documented.

A reviewer can confirm with gemini --help.

Pre-Merge Checklist

• Updated relevant documentation and README (if needed)
• Added/updated tests (if needed) — n/a, no code changed
• Noted breaking changes (if any) — none
• Validated on required platforms/methods:
  • MacOS
    • npm run
    • npx
    • Docker
    • Podman
    • Seatbelt
  • Windows
    • npm run
    • npx
    • Docker
  • Linux

Platform matrix intentionally unchecked rather than ticked without being exercised — single .md table, no code path. npm run preflight not run for the same reason; happy to if you'd like it recorded.

Note: this edits the same file as #29011 (ACP flag rows) but different rows, so whichever lands second may need a trivial rebase. Happy to combine them if you'd prefer one PR.

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[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request improves the CLI documentation by surfacing six configuration flags that were previously missing from the reference table. The changes ensure that users have a complete view of available options, including security-sensitive flags, without requiring them to rely solely on the command-line help output.

Highlights

• Documentation Update: Added six previously undocumented CLI flags to the reference table in docs/cli/cli-reference.md.
• Flag Categorization: Organized the new flags (--policy, --admin-policy, --session-id, --session-file, --raw-output, and --accept-raw-output-risk) into logical groupings alongside related existing flags.
• Security Transparency: Included explicit security warnings for the --raw-output flag to ensure users are aware of potential risks when disabling model output sanitization.

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[github-actions]

📊 PR Size: size/XS

• Lines changed: 6
• Additions: +6
• Deletions: -0
• Files changed: 1

[gemini-code-assist]

Code Review

This pull request updates the CLI reference documentation (docs/cli/cli-reference.md) to document several new command-line options, including --policy, --admin-policy, --session-id, --session-file, --raw-output, and --accept-raw-output-risk. There are no review comments, and I have no feedback to provide.

_{Note: Security Review has been skipped due to the limited scope of the PR.}

[harshil-mistry]

@googlebot I signed it!