Radar brief — 2026-09-07

What the evidence shows

Window: 14 signals across 23 tracked assistants. Versioned GitHub releases dominate the useful rows; the mix is only 49% GitHub/changelog vs HTML, with 1 source reporting errors and 8 open improvement proposals. Several high-score notes omit dozens of extra commits (bodyOmitted) — those are not inferred below. Zed v1.19.0-pre is a prerelease. Kiro 2.20.2 published a date stamp and almost no change text.

For developers

• Patch Claude Code to v2.1.260 if deny/allow paths contain () or brittle globs, or if you run zsh. Those were permission/sandbox bugs, not cosmetics. Use /diff in fullscreen to watch uncommitted edits; use /cost when prompt_cache looks empty (tool defs, system prompt, or TTL idle).
• Patch Cline CLI v3.0.61 and SDK v0.0.82 if you route through Dify, SAP AI Core, opencode, or Codex CLI. Empty catalog capabilities were stripping all tools and images. Unreachable SSE/HTTP MCP should no longer tear down the TUI; expect a 10s connect budget instead.
• Goose v1.48.0: if you live on Z.ai, confirm GLM-5.3; if you bill custom OpenAI-compatible endpoints, fill the new cost fields. PreToolUse hooks can use on_failure; tool_call_id is now stable across the tool lifecycle. Treat the release as breaking until you read the omitted 98 items yourself.
• Codex CLI rust-v0.152.0 then rust-v0.153.0: package-style MCP names (: @ / .), per-tool output_token_limit, long thread/shellCommand deadlines, then plugin marketplace CLI + vim undo/search + tui.auto_recap = false. After an app-server drop, review paused queued submits before they resume.
• Antigravity 1.1.25: Markdown custom agents now inherit ambient skills/rules/subagents — pin or isolate agent files if you wanted a blank agent. MCP OAuth with long codes should work; re-check Windows /skills grouping and relative plugin paths.
• OpenCode v1.18.29: subscription users who expected gpt-6-astra should refresh the OAuth model list.
• Tabnine: upgrade CLI to 0.35.0; turn on tools.enableWebFetchTool if you want direct fetch instead of an LLM-mediated page summary. Related proposal: Enable tools.enableWebFetchTool and upgrade Tabnine CLI to 0.35.0.
• Kiro v2.19.2: tune stream idle/hard timeouts if long generations were dying; do not wait on 2.20.2 for a described fix.
• Do not ship Zed v1.19.0-pre as production IDE policy; memory/streaming gains are real but the tag is prerelease.
• Open Grok CLI proposals (not in this release table): replace <output_efficiency> with <response_guidelines> and drop legacy managed MCP configs / shadowed platform skills.

For teams

• Treat Claude Code v2.1.260 as a security patch. Parentheses in path rules could leave “read-only” trees writable; zsh assignment smuggling could auto-approve. Roll it before widening sandbox trust. If your IdP only returns id_token on refresh when openid is re-requested, set oidc.scope_on_refresh. Desktop policy now has explicit plugin marketplace/upload keys — decide those org-wide, then use /reload-plugins in headless/SDK.
• Cline Hub upgrades are no longer silent. Operators get a session-count prompt, drain in-flight turns, and will not SIGKILL a wedged old Hub. Windows: Authenticode via Azure Trusted Signing; expect clearer application-control failures. Review Pin Cline models after the v3.0.61 switch to Claude Fable 5.1 before a fleet default drifts. Plugin-layout proposal (team, P5): move Agent Plugins into ~/.agents/plugins and Hub-enable them.
• Codex Plus/Team: warn users about the half-allowance banner in the ~5-hour window. Full Access skipping Guardian on confirmation-only actions is a control-plane change — confirm that matches your review policy. Remote plugin install/remove is now a first-class CLI.
• Goose: provider catalog and Bedrock GPT-5.6 routing expand shadow-IT surface; use the new cost fields so custom providers are not free in dashboards. Hooks/on_failure belong in the same change-control as MCP permissions.
• Antigravity: duplicate permission grants were accumulating across reloads and subagents — audit configs after upgrade. Remote Control reverse-tunnel routing was hardened; re-verify OAuth IdPs that emit long authorization codes.
• Factory Droid: new sessions with no model now default to GPT-5.6 Sol; out-of-credits messaging no longer points at a retired Core model. /archive is the team hygiene action — see Archive Factory Droid chats with /archive and default new sessions to GPT-5.6 Sol. Treat v0.208.1 60% off GPT/Grok as a billing promo with an expiry, not a capability upgrade. CLI no longer blocks startup on slow org settings — settings apply late; document that race for policy-sensitive flags.
• Tabnine 6.5.3: org-level repository add no longer depends on which team is selected; verify per-team model assignment actually applies.

What to ignore

• Kiro 2.20.2 — date-only HTML patch, no evidenced changes.
• Kiro v2.19.2 body mixing 1.0.337 IDE notes with 2.19.x stream recovery. Use the named 2.19.1/2.19.2 items only.
• Factory Droid v0.208.1 discount copy and any “+N more changes” you cannot see (bodyOmitted on Goose 98, Claude Code 66, Zed 50, Codex 95+94, Cline 18+34, Tabnine 7, Kiro 8).
• Zed v1.19.0-pre as a stable team standard.
• Conflating OpenCode v1.18.29 with Goose’s “OpenCode Zen gateway” provider — different repos, different changes.
• Windsurf agent-window and OpenCode PR-video proposals in this brief’s release table; they are open proposals, not shipped evidence here.
• Marketing language, plugin-version laundry lists, and internal scoring. HTML/docs rows (Kiro, Tabnine, Factory) are noisier than GitHub tags.

Watch next

• The omitted tails on Goose v1.48.0 and Claude Code v2.1.260 (both tagged breaking; hooks, compaction, permissions, MCP).
• Whether GPT-5.6 routing stays consistent: Goose Bedrock sol/terra/luna, Factory default Sol, OpenCode gpt-6* OAuth filter — three different surfaces, not one guarantee.
• Plugin marketplaces becoming a real control plane: Codex remote install/remove, Claude headless /reload-plugins + desktop marketplace keys, Cline Hub plugin-path proposal.
• MCP auth/names: Antigravity long OAuth codes, Codex package-style server names and output_token_limit, Cline 10s remote-MCP budget.
• Cline Fable 5.1 pin (P4, everyone) and whether empty-capability catalogs regress again on other gateways.
• Zed 1.19.0 stable follow-through on Agent memory and OpenRouter effort.
• Remaining open proposals (8), including Grok CLI MCP/prompt cleanup and the low-priority OpenCode verification-videos item.

How to use DevAgentRadar

DevAgentRadar is a free global radar for AI coding assistants: we score versioned evidence (prefer GitHub releases/changelogs) and refuse to invent omitted commits or unreleased products.

1. Read What the evidence shows as the source of truth — table rows only, no vendor blogs required.
2. Take For developers as personal upgrade/config actions; take For teams as policy, permissions, billing, and fleet defaults.
3. Skip What to ignore so HTML stubs, prereleases, and truncated +N more lines do not drive purchases.
4. Track Watch next and the open proposals (8 in this window) as the actionable backlog — each proposal is already audience-tagged (developer / team / everyone).
5. When GitHub share is ~50% as it is today, discount HTML docs (Kiro, Tabnine, Factory) until a tag confirms the same fact.

Re-run against the live feed before you pin defaults: this brief is a snapshot of 14 curated signals, not a complete catalog of all 23 tracked assistants.

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 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

• Cline sdk/sdk/v0.0.82 — SDK v0.0.82: Fixed tool calling being silently disabled for gateway models whose catalog entry declares no capabilities. · Three separate producers built gateway model defin — 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)