Hillclimb: Claude Code and Codex hillclimb on verifiable rewards
Show HN / GitHub rebase-energy/hillclimb (MIT): open CLI + Python framework that uses Claude Code and Codex as search operators to autonomously propose Python programs maximizing a score you define—AlphaEvolve-style hillclimbing for speedups, optimisation, and prediction tasks. Modular strategies and evals aim to discover better autoresearch methods, not just wrap a single agent loop. Docs at docs.hillclimb.sh; PyPI package hillclimb (Python 3.12+).
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junegunn (fzf author) documents how shell CTRL-T bindings die once you live in an agent prompt—and how tmux PREFIX bindings restore fzf: tmux-fzf-complete (files/dirs/URLs/on-screen paths/sentences) and fzf-git.sh (commits, branches, PRs) inject selections as keystrokes into Claude Code or Codex. Requires tmux 3.7+ floating panes and agent settings that keep scrollback (/tui default for Claude Code; Codex alternate_screen=never). Pattern: make agent prompts as completable as the shell.
Managoat turns coding agents into a conversational computer API: POST a prompt, a sandbox wakes with repos/packages/credentials, Claude Code or Codex or Gemini CLI runs, then the machine parks (disk kept, no awake compute) until the next turn. Agent/Environment/Vault templates; secrets merge with Vault winning; bound secrets never enter the sandbox (egress broker). REST API, CLI, TypeScript SDK, demos (Conversations + Workbench), self-host docs. GitHub managoat/managoat actively shipping Oct 17.
MIT Go daemon + git hook reviews every commit with the CLIs you already pay for—Codex, Claude Code, Cursor, OpenCode, and first-class Grok Build (grok / grok-build). Findings stay in a ledger until closed; agent hooks push open review IDs back into the session for /roborev-fix before context goes cold. Reviews stay on your machine.
SDK + stdio MCP server run agent()/parallel()/pipeline() scripts that fan out to Claude Code, Codex, OpenCode, or pi via ACP, with journaling, resume, and git-worktree isolation.