{"name":"\/claude-in-chrome","slug":"claude-in-chrome","family":"slash","title":"Slash commands","noun":"slash command","description":"When CLAUDE_CODE_DISABLE_CFC_PROMPT is set, Claude Code now tells host apps like the VS Code extension, which then drop their own browser instructions","description_source":"entry","described_by":{"version":"2.1.314","anchor":"claude-code-disable-cfc-prompt-is-reported-to-hosts"},"presence":{"first_seen":null,"removed_in":null,"in_current_build":false,"newest_mined":"2.1.314","builds":0,"mined_builds":154,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.314","anchor":"claude-code-disable-cfc-prompt-is-reported-to-hosts","heading":"Apps hosting Claude Code are now told when the Chrome prompt is turned off","line":"When CLAUDE_CODE_DISABLE_CFC_PROMPT is set, Claude Code now tells host apps like the VS Code extension, which then drop their own browser instructions","released_at":"2026-10-30 00:12:56","reason":"named in this entry, found in this entry's text"}],"entries_total":1,"docs":[{"source":"claude-code","path":"env-vars","title":"Environment variables","documented":false}],"docs_total":1,"gates":[],"related":[{"name":"\/claude-api","slug":"claude-api","description":"**[Skill](\/docs\/en\/skills#bundled-skills).** Load [Claude API](https:\/\/platform.claude.com\/docs\/en\/api\/overview) and [Managed Agents](https:\/\/platform.claude.com\/docs\/en\/managed-agents\/overview) reference material for your project's language. Also activates automatically when your code imports `anthropic` or `@anthropic-ai\/sdk`. Run `migrate` to update existing Claude API code to a newer model. Run `upgrade` to move your project's Anthropic SDK dependency across a major version, currently the Python `anthropic` package from 0.x to 1.x. Run `managed-agents-onboard` for a walkthrough that creates a new Managed Agent. Run `prompt-audit` to flag instructions written for older models in your prompts, skills, and tool descriptions and propose fixes as a diff. Run `cost-optimize` to profile where your project's Claude API spend goes and propose savings from options such as prompt caching, trimming unneeded input and output tokens, batch processing, effort, and model choice, one change at a time. Run `build-eval` to build an eval set for your Claude-powered app, and `hillclimb` to iteratively improve the app against an existing eval. The `prompt-audit` subcommand requires Claude Code v2.1.221 or later, `upgrade` requires v2.1.236 or later, `cost-optimize` requires v2.1.247 or later, and `build-eval` and `hillclimb` require v2.1.259 or later"},{"name":"\/claude-test","slug":"claude-test","description":"New built-in 'Claude Test' plugin runs plain-language specs against your local dev server in a real browser and reports PASS\/FAIL"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/slash\/claude-in-chrome","family_url":"https:\/\/changelogs.core-directive.com\/reference\/slash.json"}