Radar brief — 2026-08-17

What the evidence shows

Curated window across 22 tracked assistants, 16 signals (~55% GitHub/changelog). Strongest weight on tagged GitHub releases; one HTML changelog and several prereleases are noisier.

Also present (lower operational weight): Gemini CLI v0.56.0-preview.1 / nightly and Codex rust-v0.148.0-alpha.21—prerelease/nightly noise; caretaker/triage and alpha tags, not fleet defaults.

Theme read: model / mcp / agent / cli stack the board; security and breaking cluster on plan-mode enforcement (Cline), cyber-model auto-review (Codex), path blocklists (Gemini CLI), identity forwarding and cgroup limits (Claude Code).

For developers

• Codex CLI: Try rust-v0.147.0 if you want plugin catalogs and --approve-for-me; read the rust-v0.146.1 auto-review default changes before relying on hands-off approvals with cyber-capable models.
• Cline: On v4.1.4, expect plan mode to refuse mutating shell/file/git/package actions—investigate read-only, then switch out of plan yourself. Desktop v0.0.8 is the release to use if you edit mid-thread and need checkpoint-accurate workspace rewind.
• Claude Code v2.1.233: Use GitLab !N MR wiring in agents/worktrees if that is your host; enable CLAUDE_CODE_TOOL_MEMORY_LIMIT on Linux when agents run heavy builds; keep forward_user_identity off unless your proxy needs per-user attribution.
• Goose v1.46.0: Use streaming shell + per-message cost/TTFT UI to debug slow or expensive turns; cache-safe turn assembly matters if you depend on prompt caching.
• Gemini CLI v0.55.1: Prefer this over preview/nightly for path-blocklist and at-reference fixes; do not standardize on v0.56.0-preview / nightly from this window.
• OpenCode v1.18.11: Upgrade if MCP SSE clients stuck in reconnect loops or providers emit nonstandard reasoning fields.
• Zed v1.15.0: Set git.diff_base explicitly so gutter/diff match your branch review habit (HEAD vs merge-base).

For teams

• Approval policy: Codex’s --approve-for-me plus harder cyber-model auto-review defaults (rust-v0.146.1 → 0.147.0) need a written team default—who may enable auto-approve, on which models, in which sandboxes.
• Plan/act separation: Cline v4.1.4 removes model-initiated plan-to-act and hard-blocks mutating plan-mode shell—align runbooks and CI bot accounts so “plan” cannot silently edit.
• Enterprise identity & spend: Claude Code’s opt-in forward_user_identity and Antigravity 1.1.10 Gemini Enterprise business sign-in are the levers for per-user attribution, regional inference, and admin control; roll out with IdP/proxy and license-seat owners, not ad hoc.
• MCP estate: Windsurf’s self-hosted GitLab/Atlassian auth fixes and OpenCode’s SSE loop fix are reminders to retest corporate MCP after upgrades; pin versions and watch reconnect behavior under error responses.
• Resource isolation: Claude Code’s Bash cgroup limit is a concrete control against one runaway agent stalling a shared runner—pilot on Linux CI/dev hosts.
• Desktop checkpoint discipline: Cline desktop transactional restores reduce half-rewound workspaces; define when agents may checkpoint/restore on shared checkouts.

What to ignore

• Codex rust-v0.148.0-alpha.21, Gemini v0.56.0-preview.1 / nightly — prerelease tags without actionable stable notes in this brief.
• Gemini CLI changelog noise inside v0.55.1 (nightly bumps, caretaker-internal jobs) — ship-relevant bits are security path handling and release verification, not caretaker eval scaffolding.
• Open proposals still open (P5) on older pins (Codex 0.144.6/0.145.0, Cline v4.0.7, Goose v1.44.0, OpenCode v1.18.5, Zed pre, Grok sync)—superseded by newer evidence above; do not prioritize those links over current tags.
• Marketing-heavy HTML — Windsurf’s note is useful for MCP auth/perf but sits below GitHub-tagged releases in trust mix.

Watch next

• Whether Codex plugin catalogs + --approve-for-me become the default team install path, and how cyber-model review defaults evolve past 0.146.1/0.147.0.
• Cline plan-mode hard blocks and desktop fork/rewind—any follow-on breaks for MCP tools that mutate files.
• Claude Code identity-forwarding and cgroup limits adoption in proxied enterprise gateways.
• Gemini CLI 0.56.x when it exits preview (caretaker/triage is internal until stable).
• Goose cache-semantics and unrolled loop—impact on long MCP sessions and cost reporting accuracy.
• Grok Build moving from commit sync (be71313) to clearer semver releases.

How to use DevAgentRadar

• Treat this as an evidence radar, not a vendor ranking—every claim traces to the versioned rows above.
• Developers: pick one assistant you already run; adopt only the concrete flag/mode/security change that matches your workflow.
• Teams: convert approval, plan-mode, MCP, and identity changes into policy + pinned versions; retest corporate MCP after each bump.
• Ignore prereleases and open P5 proposals until they show up as fresh stable signals.
• Re-read the next brief for version deltas only—do not invent features absent from the evidence table.

Evidence appendix

• Evidence window: top curated signals (versioned releases preferred)
• Assistants tracked: 22
• Signals in this brief: 16
• Trusted source mix (GitHub/changelog vs HTML): 55%
• Open improvement proposals: 8
• Sources reporting errors: 0

High-signal releases used

• Claude Code v2.1.233: Added GitLab merge request URL support to the --worktree flag and the claude agents view (where MRs display as !N) · Added an opt-in `forward_user_identit — source

• OpenAI Codex CLI rust-v0.147.0: Install portable Agent Plugins and search across local, personal, workspace, and remote plugin catalogs. (#36544, #36409, #36919, #36796) · Organize conversatio — source

• Zed AI v1.15.0: This week's release includes a new git.diff_base setting for choosing whether editor gutters, file-status colors, and git: diff show uncommitted changes aga — source

• Goose v1.46.0: Unrolled agent loop #9574 · Cache-safe request assembly with append-only turn context and declared cache semant — source

• Google Antigravity 1.1.10: Added Business sign-in for Gemini Enterprise accounts, so you can authenticate with a Google Cloud project under Google Cloud terms, use a license seat allocate — source

• Gemini CLI v0.55.1: fix/verify release npm ci ignore scripts · fix(ci): prevent workspace binary shadowing in release verification · Feat/tool registry discovery · fix(ci): prevent — source

• Cline desktop-v0.0.8: Edit any earlier message in a conversation — the app forks the session at that point, rewinds the workspace to that run's checkpoint, and re-runs from your edit — source

• Cline v4.1.4: Recognize Chutes as a provider. · Show skills alongside workflows in the slash command menu, and disambiguate commands that share a name instead of letting one — source

• Cline sdk/sdk/v0.0.72 — SDK v0.0.72: Prompts queued during a turn now survive being interrupted: they are preserved across user-initiated aborts, drained after a turn aborts itself, and edits made — source

• Gemini CLI v0.56.0-preview.1: Changelog for v0.55.0-preview.1 · chore(release): bump version to 0.56.0-nightly.20260806.g761f604c1 · Changelog for v0.54.0 · Reclassifying Capacity Exhaustion — source

• OpenAI Codex CLI rust-v0.146.1: Apply safer automatic-review defaults for cyber-capable models and explain permission changes in the terminal interface. (#37057) · #37057 [0.146] Backport safe — source

• Gemini CLI v0.56.0-nightly.20260817.g9a15c45fb: [SSR Agent] Issue Fix (21911): Add composite flag to packages/cli tsconfig — source

• xAI Grok CLI (Grok Build) be71313 — Synced from monorepo: Synced from monorepo · Presence protocol end-to-end: live presence updates through the gateway to client presence tiers · Worktree: narrow standalone origin fet — source

• OpenCode v1.18.11: Stopped MCP SSE connections from getting stuck in reconnect loops after server error responses. · Fixed provider model configs that use interleaved reasoning fi — source

Open proposals

• Improve with OpenAI Codex CLI rust-v0.145.0: rust-v0.145.0 0.145.0 (audience: team, P5)

• Improve with Cline v4.0.7: v4.0.7 (audience: team, P5)

• Improve with xAI Grok CLI (Grok Build) 8adf901: Synced from monorepo (audience: team, P5)

• Improve with OpenCode pr-38252-videos: pr-38252-videos PR #38252 verification videos (audience: everyone, P5)

• Improve with OpenAI Codex CLI rust-v0.144.6: rust-v0.144.6 0.144.6 (audience: developer, P5)

• Review breaking changes in Zed AI v1.13.0-pre (audience: team, P5)

• Improve with OpenCode v1.18.5: v1.18.5 (audience: team, P5)

• Improve with Goose v1.44.0: v1.44.0 (audience: team, P5)