cc-mod-suggestion-sentence-case

A Claude Code mod. After a turn, Claude Code proposes your next prompt as dim text in the empty prompt box, and Tab accepts it. The suggestion often comes in lowercase and without a full stop, so if you write your prompts as sentences, every accepted suggestion needs fixing before you send it. This mod rewrites the suggestion before it is shown: it starts with a capital letter and ends with a full stop.

| Suggested | Shown | |---|---| | run the tests | Run the tests. | | why did it fail? | Why did it fail? | | čekaj da završi | Čekaj da završi. | | `npm test` again | `npm test` again. | | /commit | /commit |

Rules

• The first character is capitalized only if it is a letter. A suggestion that starts with code, a quote or a digit keeps its start.
• No full stop is added after ., ?, !, … or :.
• A slash command stays exactly as it is.
• Spaces at either end are trimmed.
• Only the suggestion changes. Nothing you type or send is touched.

How it works

One prompt.suggest hook in plugin/hooks/register.ts rewrites the text and passes it on with next({ ...e, text }). It calls nothing on $: no files, processes, network or model calls.

It handles every suggestion, both Claude Code's own and any that another plugin proposes through $.prompt.suggest.

Install

claude plugin marketplace add <path-to-this-repo>
claude plugin install cc-mod-suggestion-sentence-case@cc-mod-suggestion-sentence-case --scope user

On Claude Code builds before 2.1.287, function hooks of installed plugins may need "CLAUDE_CODE_ENABLE_FUNCTION_HOOKS": "1" in the env block of ~/.claude/settings.json. Verified live in the Code tab of Claude Desktop.

Check and test: claude plugin validate ./plugin and claude plugin test ./plugin.