Radar brief — 2026-09-05

What the evidence shows

This window covers 14 signals across the 23 tracked assistants. Versioned GitHub releases are the high-signal half; HTML changelogs are noisier (trusted GitHub/changelog mix is 49%). Several large notes omit most of their diff (bodyOmitted); those extra items are not inferred below.

Versioned GitHub releases

HTML / docs changelogs (lower confidence)

Themes in the evidence: model, cli, agent, mcp, security, ide, pricing. One tracked source is flagged as reporting errors; treat HTML pages and empty patches as noisy.

For developers

• Goose v1.48.0: If you needed another OpenAI-compatible/declarative gateway, this is the release to read first. Re-point anything still on Z.ai GLM-5.2 to GLM-5.3. Wire custom provider cost fields if you care about /cost-style tracking. Use PreToolUse on_failure and the stable tool_call_id if you hook tools.
• Claude Code v2.1.260: Turn on /diff in fullscreen while the agent edits. Use /cost / prompt_cache when cache hit rate drops (tool defs, system prompt, or TTL idle). Re-test permission rules whose paths contain () or brittle regex; a single unclosed [ no longer nukes every edit. If you live in zsh, expect prompts for REPORTTIME / REPORTMEMORY / DIRSTACKSIZE assignments that hide command substitutions—those were auto-approved before.
• Codex CLI rust-v0.152.0 → v0.153.0: Set tui.auto_recap = false if auto recaps are noise. Use the plugin CLI against remote marketplaces only for plugins you intend to run. Put output_token_limit on chatty MCP tools. MCP server names can now be package-like (:, @, /, .). Vim drafts now search/undo without dropping pastes.
• Cline desktop-v0.0.23: Install Agent Plugins under ~/.agents/plugins with a valid plugin.json. Do not expect workspace .agents/plugins to load. Confirm which MCP servers the Hub auto-starts (stdio / Streamable HTTP / SSE).
• Cline cli-v3.0.61: Upgrade if a stale Hub, an offline remote MCP, or “tools vanished” on Dify / SAP AI Core / opencode / Codex CLI models has been biting you. On Windows, a Smart App Control / policy block should now print a real error (Authenticode-signed binaries).
• Antigravity 1.1.25: Markdown custom agents now inherit ambient skills, rules, and subagents—audit agent files if you were relying on isolation. Use Gemini 3.8 Flash when authenticating with GEMINI_API_KEY. Long MCP OAuth codes and Windows `` skill paths are fixed.
• OpenCode v1.18.29: Subscription users who could not see gpt-6-astra should get it after this filter fix.
• Tabnine v6.5.4: Enable tools.enableWebFetchTool if you want direct fetch instead of an LLM-mediated page summary. Move CLI to 0.35.0 if attribution feedback was disappearing after VS Code diff accept.
• Factory Droid v0.209.0: New sessions with no model pick GPT-5.6 Sol. Use /archive rather than deleting threads you may want back.
• Zed AI v1.19.0-pre: Fine for local soak (Agent memory, OpenRouter effort, streaming). Do not treat it as stable.
• Kiro v2.19.2: If turns hang on idle streams, tune api.streamIdleSoftTimeout, api.streamIdleHardTimeout, and api.timeout. Ignore 2.20.2 until a real body exists.

For teams

• Treat Claude Code v2.1.260 as a security patch, not a UI release. Parentheses in path rules, uncompilable deny regexes, and zsh assignment smuggling all weakened the sandbox. Re-verify “read-only” folder policies after upgrade.
• Cline Agent Plugins are user-home and Hub-managed, not repo-managed. Workspace .agents/plugins is ignored on purpose—so “the plugin is in the project” is not a control. Decide who may drop packages into ~/.agents/plugins, and that those packages may auto-start MCP servers. Open proposal (P5, team): move Agent Plugins into ~/.agents/plugins and Hub-enable them.
• Pin models where defaults or catalogs moved: Goose GLM-5.3, Factory GPT-5.6 Sol, Antigravity Gemini 3.8 Flash, OpenCode gpt-6* visibility. Open proposal (P4, everyone): pin Cline models after cli-v3.0.61—do not assume a model swap from the proposal title; confirm in your own config.
• Codex “Full Access” now skips Guardian on confirmation-only actions. If Guardian is part of your review story, that skip is a policy change, not a footnote. Remote plugin marketplaces (v0.153.0) are a new install surface—gate them like any other package feed.
• Antigravity: duplicate permission grants no longer accumulate across reloads/subagents; still audit stored grants. Remote Control reverse-tunnel routing was hardened—roll this before exposing remote control more widely.
• Cost: Goose can track cost from custom provider fields; Claude Code now tells you why the prompt cache missed; Codex Plus/Team warn earlier in a ~5-hour window; Factory’s 60% GPT/Grok cut is labeled limited-time on a docs page—do not budget as if it is a list price.
• Do not fleet-deploy Zed v1.19.0-pre. Prefer the GitHub-tagged CLIs above for production agents.

What to ignore

• Kiro 2.20.2 — bump with no body in this brief.
• Omitted tails — Goose +98, Claude Code +66, Codex +95/+94, Zed +50, and similar. Absence from this brief is not absence from the release.
• Zed v1.19.0-pre as GA, and changelog pages that stack older versions (Kiro 2.19.x + 1.0.337; Tabnine 6.5.4 down to 6.5.1) as if they all shipped today.
• Factory’s 60% GPT/Grok discount as a durable price signal.
• Open proposals that are not in the 14 signals (Grok CLI prompt/MCP cleanup, Windsurf agent-window split, OpenCode PR verification videos) as if those products released here. They are backlog, not evidence.
• Marketing copy and unversioned blog claims. Prefer the GitHub tags in the table.

Watch next

• Whether Zed 1.19.0 graduates from -pre without regressing Agent memory/streaming.

• Codex remote plugin marketplaces + Guardian skip: who can install, and what “confirmation-only” means in Full Access.

• Cline Hub as the real control plane for plugins, skills, and MCP—especially the drain-and-replace path when CLI > Hub.

• Catalog names propagating further: GPT-5.6 (sol/terra/luna), Gemini 3.8 Flash, GLM-5.3, integer gpt-6* IDs.

• Remaining open proposals: Factory /archive + GPT-5.6 Sol default (P3, team); Tabnine enableWebFetchTool + CLI 0.35.0 (P3, developer); Grok CLI prompt/MCP cleanup (P4, developer); Windsurf agent window (P3); OpenCode PR #38252 videos (P2).

• The next GitHub-native notes for Goose/Claude/Codex, where most of this window’s omitted diffs will actually show up.

How to use DevAgentRadar

DevAgentRadar is a public, evidence-first radar for AI coding assistants: versioned GitHub releases and changelogs in, judgment out—not vendor marketing.

Read What the evidence shows for what actually shipped in this window (23 assistants tracked; 14 signals here). Use For developers as local upgrade/config actions and For teams as policy: permissions, plugin install paths, model pins, review gates. Skip What to ignore. Track Watch next instead of filling gaps with rumor.

If a line is not in the cited tag/changelog, it is not a fact in this brief. When a release omits most of its body, wait for the next versioned signal rather than guessing.

Evidence appendix

• Evidence window: top curated signals (versioned releases preferred)
• Assistants tracked: 23
• Signals in this brief: 14
• Trusted source mix (GitHub/changelog vs HTML): 49%
• Open improvement proposals: 8
• Sources reporting errors: 1

High-signal releases used

• Goose v1.48.0: TrustedRouter declarative provider #11422 · OpenCode Zen gateway as a declarative provider [#10939](https://gi — source

• Claude Code v2.1.260: Added a diff panel that opens beside the conversation in fullscreen mode and shows your uncommitted changes as Claude edits; toggle it with /diff · Added a li — source

• Zed AI v1.19.0-pre: This week's release includes call hierarchy support, multi-select in the Git Panel, automatic language detection for untitled buffers, and project search on typ — source

• Google Antigravity 1.1.25: Added an opt-in workspace-grouped view to the /resume conversation picker, allowing users to toggle between a flat list and conversations grouped by directory — source

• OpenAI Codex CLI rust-v0.153.0: Vim mode now supports undo with u and redo with Ctrl+R, preserving complete drafts including pasted content and attachments. ([#41941](https://github.com/op — source

• OpenAI Codex CLI rust-v0.152.0: Vim mode supports / and ? searches within drafts, highlighted matches, and repeat navigation with n and N. (#41586) · Rate-limit banners offer actions f — source

• Cline desktop-v0.0.23: Agent Plugins are now discovered and run by the shared Hub. · Packages under ~/.agents/plugins are validated from their plugin.json, their valid Agent Skill — source

• Cline cli-v3.0.61: Cline now handles a running Hub that is older than your CLI. · Instead of quietly talking to a hub executing stale code, you get a prompt showing how many activ — source

• OpenCode v1.18.29: Allow Codex OAuth model filtering to recognize integer GPT versions like gpt-6 · Fixes issue of gpt-6-astra not showing up for openai subscription users · **T — source

• Kiro v2.19.2: 2.19.2 Aug 25, 2026 · 2.19.1 Aug 21, 2026 Spec Review Mouse Support and Automatic Stream Recovery This release brings mouse support to the spec review screen. · — source

• Tabnine v6.5.4: v6.5.4 August 30, 2026 Bug Fixes Tabnine CLI: Provenance & Attribution : Fixed attribution feedback being dropped after tool inputs were edited via VS Code diff — source

• Factory Droid v0.209.0 — · Desktop v0.166.0 (September 1, 2026): Session archiving from chat, a new default model, faster startup, and steadier app views · Archive sessions from chat - Archive the current session with /ar — source

• Factory Droid v0.208.1 — · Desktop v0.165.1 (August 29, 2026): 60% off GPT and Grok models · GPT and Grok discount - GPT and Grok models now bill at 60% off for a limited time, with the discount shown in the model selec — source

• Kiro 2.20.2 — Aug 31, 2026: 2.20.2 Aug 31, 2026 — source

Open proposals

• Move Agent Plugins into ~/.agents/plugins and Hub-enable them in Settings → Customize (audience: team, P5)
• Pin Cline models after the v3.0.61 switch to Claude Fable 5.1 (audience: everyone, P4)
• Replace <output_efficiency> with <response_guidelines> in Grok CLI prompts (audience: developer, P4)
• Drop legacy managed MCP configs and shadowed platform skills in Grok CLI (audience: developer, P4)
• Archive Factory Droid chats with /archive and default new sessions to GPT-5.6 Sol (audience: team, P3)
• Enable tools.enableWebFetchTool and upgrade Tabnine CLI to 0.35.0 (audience: developer, P3)
• Set devin.agentWindow.location to split Agent Command Center into its own window (audience: developer, P3)
• Improve with OpenCode pr-38252-videos: pr-38252-videos PR #38252 verification videos (audience: everyone, P2)