# Atlas blog — page 3

> The Atlas blog's index, newest first: what's new in AI coding tools such as Claude Code and Codex, plain-English guides for founders, product owners and testers, and how-tos for engineers. New articles arrive three times a day.

Canonical: https://bridge-terminal.com/atlas/blog/page/3/
Last updated: 2026-10-22

Every article, newest first. Each has a Markdown copy at its address + `index.md`.

Page 3 of 4. [Newer](https://bridge-terminal.com/atlas/blog/page/2/) [Older](https://bridge-terminal.com/atlas/blog/page/4/)

- [Claude Code Review Levels: Quick, Standard and Deep](https://bridge-terminal.com/atlas/blog/claude-code-review-levels-quick-standard-deep/) — Claude Code Review now has Quick, Standard and Deep levels and a switch for a whole GitHub organization. What changed on 19 Oct 2026 and what to check. (20 October 2026 · Plain English · What's new)
- [AGENTS.md and CLAUDE.md: One Instruction File for Both](https://bridge-terminal.com/atlas/blog/agents-md-claude-md-one-instruction-file/) — Use one AGENTS.md for Claude Code and Codex: how each tool finds the file, the import and symlink options, size limits, and how to check what loaded. (19 October 2026 · Technical · How-to)
- [What AI Coding Agents Can and Cannot Do: A Plain Guide](https://bridge-terminal.com/atlas/blog/what-ai-coding-agents-can-and-cannot-do/) — What can an AI coding agent do for your product, and where does it still need a person? A plain-English guide with everyday examples for non-coders. (19 October 2026 · Plain English · Explainer)
- [Claude Code Hooks Can Now Fail Closed: What It Means](https://bridge-terminal.com/atlas/blog/claude-code-hooks-fail-closed-onfailure-block/) — Claude Code 2.1.295 lets a safety check block an action when the check itself breaks. Here is what changed, why it matters and what to ask your team. (19 October 2026 · Plain English · What's new)
- [Claude Code Rewind: Undo AI Edits with Checkpoints](https://bridge-terminal.com/atlas/blog/claude-code-rewind-checkpoints-undo-edits/) — How Claude Code checkpoints and /rewind restore code, conversation or both, what they can't undo (Bash, most subagent edits), and how to pair them with git. (18 October 2026 · Technical · How-to)
- [How Much Does an AI Coding Agent Cost? A Plain Guide](https://bridge-terminal.com/atlas/blog/how-much-does-ai-coding-agent-cost/) — What an AI coding agent costs: flat plans versus pay-per-use, Anthropic's published Claude Code averages, why bills climb, and habits that keep spending in check. (18 October 2026 · Plain English · Explainer)
- [Claude Code Forked Subagents Now On by Default](https://bridge-terminal.com/atlas/blog/claude-code-forked-subagents-default-on/) — Claude Code 2.1.302 (16 Oct 2026) turns on forked subagents in headless runs, the Agent SDK, desktop and VS Code. What a fork is and what to check. (18 October 2026 · Plain English · What's new)
- [Claude Code Plan Mode and Verification Workflow](https://bridge-terminal.com/atlas/blog/claude-code-plan-mode-verify-workflow/) — A step-by-step Claude Code workflow: explore in plan mode, write a spec, give the agent a check it can run, then review in a fresh context before you commit. (17 October 2026 · Technical · How-to)
- [AI Coding Agent Risks and How to Reduce Them](https://bridge-terminal.com/atlas/blog/ai-coding-agent-risks-what-can-go-wrong/) — Is an AI coding agent safe? A plain-English guide to what can go wrong, from deleted files to leaked passwords, and the simple controls that lower the risk. (17 October 2026 · Plain English · Explainer)
- [Codex GPT-5.5 Retirement: What Your Team Should Check](https://bridge-terminal.com/atlas/blog/codex-gpt-5-5-retirement-what-to-check/) — OpenAI retired GPT-5.5 from Codex for ChatGPT sign-ins on 14 October 2026. Here is what changed, who is affected and what to check before work breaks. (17 October 2026 · Plain English · What's new)
- [Claude Code Permissions: Allow, Deny Rules and Modes](https://bridge-terminal.com/atlas/blog/claude-code-permissions-allow-deny-rules/) — Set up Claude Code permissions that hold: how allow, ask and deny rules are ordered, which mode to pick, and the Bash rule traps that let commands slip through. (16 October 2026 · Technical · How-to)
- [How to Brief an AI Coding Agent: A Plain-English Guide](https://bridge-terminal.com/atlas/blog/how-to-brief-ai-coding-agent-plain-english/) — How to brief an AI coding agent without writing code: what to put in the request, how to define "done", and the common mistakes that cost you rework. (16 October 2026 · Plain English · How-to)
- [Claude Code Idle Compaction: Cheaper Breaks, Same Session](https://bridge-terminal.com/atlas/blog/claude-code-idle-compaction-prompt-cache/) — Claude Code 2.1.299 (14 Oct 2026) now compacts very long idle chats before the one-hour cache runs out. What changed, the trade-off, and how to turn it off. (16 October 2026 · Plain English · What's new)
- [Claude Code Skills: Turn Repeated Prompts into Commands](https://bridge-terminal.com/atlas/blog/claude-code-skills-reusable-commands/) — Claude Code skills turn a checklist you keep pasting into a reusable /command. Covers SKILL.md, arguments, shell injection and tool permissions. (15 October 2026 · Technical · Explainer)
- [How to Check AI-Built Software When You Don't Write Code](https://bridge-terminal.com/atlas/blog/check-ai-built-software-without-code/) — You can't read the code, but you can still tell whether an AI agent's work is good. Ask for evidence, set pass/fail checks, and try the edge cases yourself. (15 October 2026 · Plain English · How-to)
- [Claude Haiku 5.5: What the Cheapest Claude Means for Teams](https://bridge-terminal.com/atlas/blog/claude-haiku-5-5-what-it-means-for-teams/) — Claude Haiku 5.5 arrived on 7 October 2026 with a 1M-token window at $0.10 per million input tokens. What it is good for, what it is not, and how to test it. (15 October 2026 · Plain English · What's new)
- [MCP Servers in Claude Code: Connect Databases and Tools](https://bridge-terminal.com/atlas/blog/mcp-servers-claude-code-explained/) — How MCP servers work in Claude Code: add local and remote servers, choose a scope, handle OAuth and secrets, limit context use and lock them down for a team. (14 October 2026 · Technical · Explainer)
- [Claude Code Costs: Cut Token Usage and Stretch Limits](https://bridge-terminal.com/atlas/blog/claude-code-costs-token-usage-limits/) — Where Claude Code spends tokens and how to cut it: /usage, model and effort choice, /clear vs /compact, prompt cache lifetime and team spend limits. (13 October 2026 · Technical · How-to)
- [AI Code Review with Claude Code: What It Catches and Misses](https://bridge-terminal.com/atlas/blog/ai-code-review-claude-code-setup/) — Set up AI code review in Claude Code with /code-review, ultrareview, managed Code Review or GitHub Actions, and learn what it catches, misses and costs. (12 October 2026 · Technical · How-to)
- [Claude Code Headless in CI: -p Mode and Safe Permissions](https://bridge-terminal.com/atlas/blog/claude-code-headless-ci-permissions/) — Run Claude Code headless in CI with claude -p: bare mode, dontAsk and allowedTools permissions, JSON output, exit codes and cost caps for unattended jobs. (11 October 2026 · Technical · How-to)
- [Claude Code Subagents: When to Split Work and How](https://bridge-terminal.com/atlas/blog/claude-code-subagents-when-to-split-work/) — When Claude Code subagents help and when they don't: writing the agent file, choosing tools and models, and catching frontmatter mistakes that fail silently. (10 October 2026 · Technical · How-to)
- [Claude Code Hooks as Guardrails: Block, Format, Test](https://bridge-terminal.com/atlas/blog/claude-code-hooks-guardrails/) — Use Claude Code hooks to block risky shell commands, protect files, format every edit and keep Claude working until tests pass, with configs you can copy. (9 October 2026 · Technical · How-to)
- [Claude Code vs Codex for Teams: A Workflow Comparison](https://bridge-terminal.com/atlas/blog/claude-code-vs-codex-team-workflows/) — Claude Code vs OpenAI Codex for engineering teams: instruction files, permissions, hooks, CI, cloud tasks and PR review compared, and when to pick which tool. (8 October 2026 · Technical · Comparison)
- [Codex CLI Setup: Install, Approval Modes and Sandboxing](https://bridge-terminal.com/atlas/blog/codex-cli-install-approval-modes-sandbox/) — Set up OpenAI Codex CLI: install it, sign in, write a config.toml and profile files, and choose the sandbox mode and approval policy for each kind of task. (7 October 2026 · Technical · How-to)

## Related

- [Atlas home](https://bridge-terminal.com/atlas/)
- [RSS feed](https://bridge-terminal.com/atlas/blog/rss.xml)