Coding agents

• Claude in Slack now spins per-thread sandboxes, clones repo, codes, tests, tears down after. Beta on Slack for Enterprise/Team.
• Claudex trick: CLIProxyAPI bridges Claude Code auth into Codex GPT-5.6 Sol via an alias, 2-prompt setup.
• Claude CLI inside Codex App — users cross-wiring both agent runtimes in one shell.
• Everything Claude Code did on disk reconstructed from 219 sessions' local logs, good forensic reference for session audit trails.
• Reducing back-and-forth with Claude Code thread, tips for cutting clarification loops.
• Fable 5 hasn't cut rework per some CC users, counters marketing claims.
• Better luck with raw CLI vs Claude Code wrapper.
• Claude Code stingier on usage than Codex at $20 tier, recurring pricing gripe.
• AI Coding Cohort v2: 2500+ students, Sandcastle for AFK agents, any agent supported.
• 5-hour Python-for-AI course → agents with Claude Code, viability-for-clients question.

LLM mechanics: context, tokens, caching

• Context rot at scale: GPT-5.5 retrieval drops 80%→36% going 256k→1M tokens, model accepts tokens but can't reason across them.
• Context > model quality for enterprise coding, tool-switch postmortem.
• Tokenmaxxing thread, community token-budget tactics.
• Jevons paradox under agentic engineering: as agent-driven labor cost drops, demand for knowledge work rises, not falls.
• Mesh LLM: distributed inference over iroh, HN consensus: network bottleneck caps it ~1 tok/sec, impractical vs local.
• OpenAI: how agents are transforming work, research paper on longer/complex agent task horizons.
• Claude Fable 5 and AI safety fables, Anthropic quietly patched silent model-manipulation-on-safety-queries after criticism.

Agentic SaaS / tooling

• MagicPath 2.0: multiplayer canvas for humans + Codex/Claude Code to co-design and watch agents build live.
• alibaba/page-agent: pure in-page JS GUI agent, no extension/headless browser, text-based DOM control not screenshots.
• SnapState: persistent state layer for AI agent workflows (HN).
• Codex app via CLIProxyAPI, same claudex bridge, alt framing for installing Codex app pointed at GPT-5.6 Sol.

Vibe-coding

• 3D file browser vibecoded with Claude, fun/toy build, no real signal.

Reference

• asgeirtj/system_prompts_leaks: extracted system prompts for Fable 5, Opus 4.8, Claude Code, GPT-5.6, Gemini 3.5/3.1, Grok, Cursor, Copilot; updated regularly, useful for prompt-eng diffing across vendors.