Beat: codex

56 pieces filed under codex, newest first.

• microsoft/tgrep Is 52x Faster Than ripgrep, and the 52x Is a macOS Number

  Tgrep's headline speedup measures how slow the filesystem is rather than how good the index is, and the durable win for coding agents is trading a per-query scan for a…

• sv-number/skills and the Agent Skills Supply Chain: What a SKILL.md Actually Installs

  A SKILL.md installs a vendor's judgment about when to use its product directly into an agent's startup context, and sv-number/skills is the clearest example yet because…

• Magnitude's Install Instructions Are a Prompt. Your Coding Agent Is the Installer.

  Magnitude ships install-by-prompt as its documented happy path, which hands your coding agent a global npm install plus write access to its own harness config, and the…

• Briefing · September 2, 2026 · morning

  This week's announcements all describe machinery that sits between an agent's decision and the action landing, moving the safety boundary from a property of the weights…

• Briefing · September 1, 2026 · morning

  Four separate releases in 48 hours all rebuild the same layer, the boundary around an agent, and all four start from the assumption that the boundary will be crossed…

• K-Dense's Scientific Agent Skills Repo Is MIT. Two of the Skills Inside It Say All Rights Reserved.

  Scientific-agent-skills is MIT at the repository level while each SKILL.md declares its own license, including noncommercial and Anthropic-proprietary terms, so the…

• ChatGPT Work Mounts One Filesystem Into Every Session You Have Running

  ChatGPT Work Cloud's /workspace is one writable volume shared across sessions, and a write that lands there crosses no sandbox boundary, so the auto-review reviewer…

• tokentab Prices Your Coding Agents Offline, From a Table Someone Maintains by Hand

  Tokentab produces something that looks like a bill for your coding agents but is a reconstruction, because the token counts come from vendor logs while the dollars come…

• Briefing · August 30, 2026 · morning

  Five vendors shipped changes in the same 48 hours that all stop accepting a claim about identity or permission at face value, and start demanding proof at the moment of…

• codex-with-chatgpt Says Your Repository Is Never Uploaded. Read That Sentence Again.

  Codex-with-chatgpt's read-only MCP bridge is unusually careful security engineering, and its own reassuring line about never uploading your repository is true only about…

• Briefing · August 29, 2026 · morning

  Access to models and to agents is now decided at the identity and ownership layer rather than the API layer, and four separate moves inside 48 hours pushed that gate in…

• Archify Validates the Drawing, Not the Architecture

  Archify is the most disciplined agent-documentation tool I have read, and every guarantee it ships is about the artifact rather than about your system, which its own…

• Jalapeño's Perf-Per-Watt Number Divides by the Datasheet, Not the Meter

  OpenAI benchmarked Jalapeño on a harness that records chip power telemetry and then reported its efficiency lead normalized by rated package TDP, which makes the…

• Briefing · August 26, 2026 · morning

  Three separate organizations gave away a complete agent harness in the same two weeks, turning the layer everyone was trying to sell in July into free plumbing, right as…

• OpenWiki 0.4.0 Proves Its Claims Against Your Code. The Claims It Can't Pin Look Exactly the Same

  OpenWiki 0.4.0's grounded claims deterministically re-verify every fact it could pin to a repository file, and the facts it could never pin sit in the same Markdown with…

• Codex Deprecated Its MCP Server, Not MCP. The Direction of That Cut Is the Story

  Codex stopped serving MCP while expanding its MCP client support in the same release, and that one-directional cut marks the real boundary of the protocol: MCP is for…

• Briefing · August 25, 2026 · afternoon

  The measurement layer stopped being a bolt-on and became the shipped product, with LangChain releasing three separate agent-grading systems in one day while OpenAI's CFO…

• Agent Skills Compose Right Up Until Two of Them Disagree. Then Nothing Decides Who Wins.

  Agent skills are sold as composable but the format defines no precedence and no scope, so when two installed skills govern the same decision the winner gets picked…

• unlazy v2 Moves Agent Discipline Out of the Prompt and Into a Gates File

  Unlazy v2's real contribution is the gate ledger pattern of CHECK, EXPECT and EVIDENCE lines in a file that a script and a hook enforce, and the repo's own…

• Briefing · August 23, 2026 · afternoon

  Running many agents at once stopped being a technique this weekend and became infrastructure, and almost everything shipped around it is about supervision and cost…

• Webcmd Says It Cuts Browser-Agent Tokens by 90%. Its Own Site Calls That Number a Placeholder.

  Webcmd's 90% token cut is a modeled placeholder the project labels as such, and the core package ships zero site adapters, so the saving is a reward for authoring work…

• Briefing · August 21, 2026 · afternoon

  The agent session stopped being a private terminal window and became a shared team channel, and the billing model nobody redesigned is the part that breaks first.

• career-ops Is an AI Job Search Tool Whose Best Answer Is Don't Apply

  Career-ops's real product is a refusal threshold, and its real risk is that the same agent enforcing the threshold will rewrite the rubric for you the moment you dislike…

• OpenAI's Computer History Turns Your Mac Into Agent Memory, and Writes It to Plain Text

  Computer History is the best-documented agent memory feature anyone has shipped, and its documentation tells you the derived memory files are unencrypted, readable by…

• Codex Multi-Agent V2 Rejects Your Cheapest Subagent, and Your Config File Can't Override It

  Codex resolves which models you may delegate to from a static server-side model catalog rather than from your config, so a documented setting can be true, effective at…

• Briefing · August 17, 2026 · afternoon

  Three separate moves in 48 hours all changed the layer between your app and the model, and not one of them was a model.

• Briefing · August 17, 2026 · morning

  Four separate things that were free or open picked up a gate in 72 hours, and the counter-tooling is already climbing the trending charts.

• Memmy Agent Gives Six AI Tools One Memory. That Is Also One Blast Radius.

  Memmy makes agent memory a shared substrate under Claude Code, Codex, Cursor and three others, which is the right architecture, but sharing a memory store means sharing…

• Briefing · August 15, 2026 · afternoon

  The approval prompt stopped being the default in coding agents this week, and the sharpest argument against that came from the same labs that shipped it.

• Briefing · August 14, 2026 · morning

  The human approval prompt is being retired across the agent stack this week, and the thing replacing it is an automated policy layer whose own vendor-published miss rate…

• Briefing · August 12, 2026 · afternoon

  Four vendors spent this week retiring the human approval click as an agent safety control and replacing it with a classifier, an enrollment program, a cloud perimeter,…

• get-bb/bb Made Agent Recursion a Data Model Feature. Nothing in It Bounds the Depth.

  Bb's load-bearing decision is that agents are first-class operators of the same API the UI uses, and its thread model gives managers the ability to own child threads,…

• Briefing · August 10, 2026 · morning

  Agents stopped borrowing human software this week, with a human-shaped agent browser switched off the same week a browser written for agents shipped, and coding agents…

• ChatGPT Atlas Shuts Down August 9. Read the Shutdown Notice, Not the Launch Post.

  Atlas lasted under ten months, and its shutdown notice is the more useful document than its launch post, because it names the state a browser owned that the replacement…

• Briefing · August 4, 2026 · morning

  Every significant agent launch on today's board answers the same two questions, where the agent is allowed to work and how a human checks what it did, which means the…

• Fresh-Context Review: The Agent That Wrote Your Code Is the Worst Judge of It

  A context window that wrote the code cannot honestly review it, self-preference research shows the failure gets worse exactly when the author was wrong, and the fix is a…

• Unit 42's Autonomous AI Attack Report Is a Configuration Audit, Not a Capability Warning

  Every control the attacker disabled in Unit 42's autonomous-attack campaign is a documented, supported setting in harnesses developers already run, so the report reads…

• Briefing · August 1, 2026 · morning

  Three separate disclosures this week put the failure at the harness layer rather than the model layer, with Anthropic classifying its own real-world breaches as an…

• GPT-5.6 Sol Rewrote OpenAI's Production GPU Kernels. The Tool They Built to Check It Is the Real Story.

  When an agent writes the code your system runs on, the reviewable artifact stops being the diff and becomes the checker, which is why OpenAI shipped a floating-point…

• Briefing · July 31, 2026 · afternoon

  The model stopped being the product this week, with the biggest cost win credited to a harness rewrite rather than a new checkpoint, a hyperscaler putting its own model…

• Two API Settings Tripled a Benchmark Score. Nobody Touched the Model.

  Your agent's context policy is a capability setting, not plumbing, and the two defaults most harnesses ship (discard reasoning between turns, truncate the oldest…

• OpenAI's codex-security Refuses to Write Its Findings Inside Your Repo

  Codex-security's most instructive design choices are about its output rather than its detection, because a validated AI scan produces a ranked and reproducible attack…

• Briefing · July 29, 2026 · morning

  Frontier models crossed from finding bugs in demos to breaking real systems and real math in the same week, and the defensive response that arrived within 72 hours had…

• Briefing · July 25, 2026 · afternoon

  The agent harness is separating from the model vendor, with OpenWorker, the stateless MCP specification, and OpenAI's own Codex plugin for Claude Code all landing in the…

• Codex /import Is a Moving Van for Your Agent's Memory

  Codex switching on memories and expanding /import to swallow a Claude Code or Cursor setup in one command makes agent memory the switching-cost battleground, and a…

• ChatGPT Voice and Claude Voice Mode Just Turned Talking Into an Agent Control Surface

  OpenAI and Anthropic both shipped voice as an agent control surface within 24 hours, and the reading friction voice removes was doing unpaid safety work, so instrument…

• Briefing · July 24, 2026 · afternoon

  Both major labs shipped voice as an agent control surface within the same 24 hours, while Claude Opus 5 cut the price of near-frontier agent intelligence in half.

• Briefing · July 24, 2026 · morning

  Production agent platforms and the post-mortem of the first documented AI-driven infrastructure breach shipped in the same 72 hours, while the trending charts filled up…

• OpenAI Presence Gives Each Agent One Job and Only That Job's Keys. The Scoping Is the Product.

  OpenAI Presence makes the deployable unit of an enterprise agent one narrow job with least-privilege access plus policy, evaluation, and a human escalation path, and…

• no-ai-slop Strips 20+ AI Writing Tells From Any Draft. That Doesn't Make It Yours.

  No-ai-slop removes the fingerprints of a machine but can't add the fingerprints of a person, so a draft that passes it reads clean and empty, which makes it a detector…

• Briefing · July 23, 2026 · morning

  The same week vendors raced to ship enterprise agent-deployment platforms, the plumbing beneath them (MCP) was rebuilt for stateless scale and hardened auth, and a wave…

• opencodex Lets You Run Any Model Behind Codex. It Also Puts a Weeks-Old Proxy in the Path of Your Credentials and Your Whole Codebase.

  Opencodex is a clean, genuine answer to the harness-unbundled-from-model shift (translate Codex's Responses API to any provider so you keep the Codex ergonomics and shop…

• Codex-Dream-Skin Puts a Wallpaper on Your Coding Agent by Injecting Into It

  A purely cosmetic theme for OpenAI's Electron-based Codex desktop app hit 2 trending by injecting into the running app over Chrome DevTools Protocol (CDP) on 127.0.0.1…

• Briefing · July 17, 2026 · afternoon

  The unit of agent capability became the installable SKILL.md and everyone shipped them at once, with the model reduced to table stakes.

• Briefing · July 16, 2026 · morning

  After a year of shipping agents first, trust and privacy became the product surface: Grok's data-exfiltration cleanup, Codex dangerous-command detection, and Anthropic…

• Briefing · July 15, 2026 · afternoon

  The shippable unit of agent capability became the portable SKILL.md that runs unmodified across Claude Code, Codex, and Cursor, with no way yet to know a skill is safe…