# 5 Best Tools That Give Your Coding Agent Eyes on Your App (2026) Summary: App context tools for solo builders, compared by what the agent sees and whether that data stays put. Jam, Faylee, ilse, Reticle, and Chrome DevTools MCP. Canonical: https://www.dharmikjagodana.com/blogs/best-app-context-tools-for-solo-builders Updated: 2026-11-02 Author: Dharmik Jagodana No public affiliate, referral, or partner program was found. [Jam](https://jam.dev/)'s /affiliates, /partners, and /referral return 404. [Faylee](https://faylee.app/)'s /affiliates and /partners return 404. [ilse](https://ilse.design/en)'s /affiliates returns 404. [Reticle](https://reticle.sh/)'s /affiliates and /partners return 404. Chrome DevTools MCP is a Google open-source project. Commission: not published. No link in this post is an affiliate link. Affiliate status did not change who is listed or the order. Tags: [#coding-agents](https://www.dharmikjagodana.com/blogs/tags/coding-agents.md), [#tools](https://www.dharmikjagodana.com/blogs/tags/tools.md), [#solo-builders](https://www.dharmikjagodana.com/blogs/tags/solo-builders.md) ## Key takeaways - App context tools let a coding agent see a running app: recordings, logs, and the DOM. - First is Jam, a recorded bug the agent reads over a hosted MCP. - Jam and Faylee hand the agent a recording. ilse and Reticle sit in the app. Chrome DevTools MCP drives Chrome. - Jam and Faylee are $0. ilse's core stays free. Reticle's SDK is free. Chrome DevTools MCP is free. App context tools let a coding agent see your running app (recordings, logs, the DOM) so it can fix bugs without you describing them. The facts below are from vendor pages, checked 2 Nov 2026. App context tools for solo builders on this list: Jam and Faylee hand the agent a recording, ilse and Reticle sit in the app, and Chrome DevTools MCP drives Chrome. I have not used them. Best for a recorded bug the agent can read: [Jam](https://www.dharmikjagodana.com/blogs/best-app-context-tools-for-solo-builders.md#jam). Best for a timeline that stays local until you share: [Faylee](https://www.dharmikjagodana.com/blogs/best-app-context-tools-for-solo-builders.md#faylee). Best for a click that lands on a React file: [ilse](https://www.dharmikjagodana.com/blogs/best-app-context-tools-for-solo-builders.md#ilse). Best for a pass or fail from inside the app: [Reticle](https://www.dharmikjagodana.com/blogs/best-app-context-tools-for-solo-builders.md#reticle). Best for driving a live Chrome: [Chrome DevTools MCP](https://www.dharmikjagodana.com/blogs/best-app-context-tools-for-solo-builders.md#chrome-devtools-mcp). Updated November 2, 2026. - Scheduled for 9 November 2026. Vendor pages and repos last checked 2 Nov 2026. No hands-on testing. ## How this list was chosen An assistant drafted this from the vendors' own pages and repos. I have not used Jam, Faylee, ilse, Reticle, or Chrome DevTools MCP. There was no hands-on testing. Nobody was contacted, and nothing was signed up for. Last checked 2 Nov 2026. Each tool section links the page the sentence comes from. When a vendor does not publish a fact, the line says "not published". When two of a vendor's own pages disagree, both are quoted. They are not averaged. A vendor's benchmark number stays labeled as the vendor's claim. The five were picked on these criteria, in this order: - The vendor documents a way for a coding agent to see a running app: a recording, a click that carries a file and line, a verdict from inside the app, or a live browser. - That path is an MCP server the vendor documents, remote or on the machine. - A solo builder can start on a published free tier. A missing enterprise price did not remove a tool. - The order is the job. A recording, then a recording that waits until you share, then a click on the running UI, then an in-app verdict, then live Chrome. ## Comparison Comparison of Tools That Give Your Coding Agent Eyes on Your App, vendor data as of November 2, 2026 | Tool | Best for | Starting price | Free tier | MCP support | AI models | Platforms | Open source/self-host | Standout feature | Main drawback | What the agent sees | How it connects | Leaves the machine | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | [Jam](https://jam.dev/) | A recorded bug the agent reads over a hosted MCP | Free ($0) | 30 Jams, 5 Recording Links, 5-minute recordings, MCP included | Official remote MCP | not published | Chromium browsers, Jam for Mac, CLI | Proprietary SaaS | The agent reads the recording from the link | No Firefox, and you cannot bring your own storage | Video, clicks, console, network, screenshots | Remote MCP, OAuth or a personal access token | Yes. Uploaded to Google Cloud after secret filtering | | [Faylee](https://faylee.app/) | A bug timeline that stays on the machine until you share it | Free ($0) | 3 members, 30 recordings a month, 5 minutes, 14-day history, MCP | Official remote MCP, on every plan | not published | Chrome extension. Recording links on desktop browsers | Proprietary SaaS | Instant replay stays local until you share | Source maps behind a login or a VPN are not fetched | Frames, steps, console, network, DOM replay | Remote MCP, plus REST, webhooks, and a CLI | On share. Instant replay stays local until then | | [ilse](https://ilse.design/en) | A click on a React app that carries file and line to your agent | Free | Core is free, and the site says that stays free | Official local MCP and CLI | not published | CLI on a React dev server. Node 18+ | PolyForm Shield 1.0.0. Source-available, not open source | The click carries file and line into the repo | React only, and Pro is a pre-sale | File and line, component, tokens, notes, tweaks | Local CLI and MCP on the dev server | No. The site says there is no server for your code | | [Reticle](https://reticle.sh/) | A pass, fail, or unknown verdict from inside the running app | Free | SDK is free. Hosted plan is free. Paid price is not published | Official local MCP | not published | Node 20.11+ web dev build, Electron, Tauri | Apache-2.0 on the GitHub license file. The site FAQ says FSL-1.1-ALv2 | A pass, fail, or unknown verdict with evidence | Paid platform price is not published | DOM, network, console, state, then a verdict | Dev-only SDK, local daemon, then MCP | Not before a project is linked | | [Chrome DevTools MCP](https://developer.chrome.com/docs/devtools/agents) | Driving and inspecting a live Chrome, at no charge | Free | The server is free | Official local MCP and CLI | not published | Google Chrome and Chrome for Testing. Node LTS | Apache-2.0 | Performance traces plus Puppeteer control of Chrome | Officially Chrome only, and usage statistics default on | Live Chrome network, screenshots, console, traces | Local MCP via npx chrome-devtools-mcp | Page stays with the client. Usage stats default on | ## Jam [Jam](https://jam.dev/) records a bug, video, narration, clicks, console, and network, and an agent can read that recording from the link. It is for someone who already has a bug to show in a Chromium browser. It does not edit the repo. Firefox is not supported, and Jam does not offer your own storage. The [MCP docs](https://jam.dev/docs/jam-mcp) say: "Paste a Jam link into Claude, ChatGPT, Claude Code, Cursor, or any MCP client, and the agent reads the recording itself." Tools named there: getDetails, getConsoleLogs, getNetworkRequests, getUserEvents, getMetadata, and getScreenshots. The same docs also list frames, transcripts, search, comments, and folders. Jam's Claude connector page lists analyzeVideo too. Connect with the command the docs give: ```bash claude mcp add --transport http Jam https://mcp.jam.dev/mcp ``` There is also a Jam plugin, `/plugin marketplace add jamdotdev/skills`, a Cursor Marketplace plugin, and `codex plugin add jam@jam-plugins` for Codex. For CI or a headless run, the [token docs](https://jam.dev/docs/personal-access-tokens) describe a personal access token with read-only or read-write scopes, expiring in 7 days to 1 year. Jam stores only a hash of the token. Agents the vendor names: Claude, ChatGPT, Claude Code, Cursor, Codex, VS Code, and any HTTP MCP client. The [pricing page](https://jam.dev/pricing), checked 2 Nov 2026: - Free: $0, 30 Jams, 5 Recording Links, 5-minute recordings, Jira and Linear, and "Debug Jams via MCP". - Team: $14 per creator a month, billed yearly only. Unlimited Jams, 150 Recording Links, 15-minute recordings, 200 AI summaries, audit logs, analytics, automatic data deletion, and priority support. $14 × 12 = $168 per creator for the year. The page does not print $168. That multiplication is not a measurement. - Enterprise: referenced. Its price is not published. The docs say MCP works with every Jam in a workspace. No per-plan MCP limit is published. Model names for the AI summaries are not published. On [security](https://jam.dev/docs/security), sensitive network fields (tokens, cookies, PII, auth headers) are filtered in the browser and replaced with `JAM_DOES_NOT_SAVE_SECRETS` before upload. [Auto-blur](https://jam.dev/docs/auto-blur) applies on Recording Links. Custom sanitizers exist. Jam says data is AES-256 at rest and in transit, stored on Google Cloud, and that it does not support your own storage. Jams do not expire. Deleting archives them. Custom retention is Enterprise only. A SOC 2 report is not published on the pages opened. A support channel beyond priority support on Team is not published. [Browser support](https://jam.dev/docs/browser-support): Chromium only (Chrome, Edge, Arc, Brave, Opera). Brave has no WebSockets. Firefox is not supported. Safari is through Jam for Mac. Recording Links capture the screen only unless Jam.js is installed on the site. A public version or changelog date is not published. It is a hosted product. Jam is a proprietary SaaS. No affiliate program was found. jam.dev/affiliates, /partners, and /referral return 404. Commission: not published. Use it when the bug is in a Chromium browser and you want the agent to read the recording, the console, and the network from one link. Skip it when the bug is in Firefox, or when the recording has to live in a bucket you own. Faylee's Team plan publishes that option. Jam says it does not. ## Faylee [Faylee](https://faylee.app/) records the screen, the console, every network request, and the steps that led there, on one timeline, and shares that as one link. It also keeps the last few minutes of every tab ("instant replay", which stays local until shared), plus DOM page replay, cURL and HAR export, and Sentry matching. It is for a bug you can replay. The extension needs Chrome or another Chromium browser. Source maps behind a login or a VPN cannot be fetched yet. The MCP server is on every plan. The command on the site: ```bash claude mcp add --transport http faylee https://app.faylee.app/mcp ``` Tools named: `open_recording`, `get_moment` (a frame plus the clicks, console, and requests around it), and `add_comment` (comments back to the reporter). The site says it works with Claude Code, Codex, Cursor, OpenCode, and Claude.ai. There is also a REST API, webhooks, and a CLI. The [pricing page](https://faylee.app/pricing), checked 2 Nov 2026: - Free: $0, 3 members, 30 recordings a month, 5 minutes each, kept 14 days, MCP, Slack plus one issue tracker, and the REST API, webhooks, and CLI. - Team: $15 per recording member a month billed monthly, or $12 a month billed yearly ($144 a year). Unlimited recordings, 15-minute videos, 100 AI analyses per member a month, SSO and SCIM, and your own bucket. A 14-day trial, no card. - Enterprise: an annual contract by invoice. A dollar price is not published. Viewers are free. Prices exclude tax and are charged via Polar. Discounts for startups, open source, and non-profits are on request. Model names for the AI analyses are not published. Tokens, cookies, passwords, and card numbers become `[redacted]` in the browser before upload. Nothing uploads until you share. Click-to-blur or `data-faylee-mask`. A never-capture site list exists. On Team, an S3-compatible bucket (S3, R2, B2, MinIO) can delete recordings after 30 to 365 days. A SOC 2 report is not published on the pages opened. A support email is not published. Integrations named: Linear, Jira, GitHub, GitLab, Slack, Sentry, Zendesk, Intercom, Azure DevOps, ClickUp, Asana, Trello, and Notion. That is 13. Recording links and the widget work in any modern desktop browser. The extension does not. A version number or a launch date on Faylee's own site is not published. Faylee is a proprietary SaaS. No affiliate program was found. faylee.app/affiliates and /partners return 404. Commission: not published. Use it when you want the last few minutes of a tab to stay on the machine until you share, or you want the file in a bucket you control. Skip it when the bug is not in a desktop browser, or when you need the agent to click the UI and edit the file. That job is ilse. ## ilse [ilse](https://ilse.design/en) calls itself "an agentic WYSIWYG." You click, drag, or tweak the running app in the browser, and your own agent edits the code in the repo. Panel tweaks that map to a class are applied by ilse without AI. Small requests go to a cheaper model. Bigger ones go to the full agent. The model names are not published. Undo (⌘Z) restores the code. After a change it runs your typecheck and the related tests. The [README](https://github.com/idantas/ilse) calls it a "side project, in beta." The site names the creator as Iverson Dantas, Design Engineer. It is for a React app on a local dev server. What goes to the agent: the element's file and line with a snippet, the component that wrote the JSX, your design tokens, your note, tweaks and gestures, test findings, and optional pasted references. Test findings are on Pro. `npx ilse-design@latest` starts the dev server behind a toolbar. The README says it runs as a CLI and an MCP server. Other ways in: `--separate` (localhost:4700), a Vite plugin, a bookmarklet, or a Chrome extension marked experimental. The site says "No extension, no app, no account." The README still offers that extension as an optional way in. Those two disagree. The primary flow needs no extension. Agents named: Claude Code, Codex, Cursor CLI, Gemini CLI, and any MCP agent. The core is free, and the site says "what's free never becomes paid." Pro (test mode, journeys, memory, component library actions) is a pre-sale: US$49 one-time for the first 10 buyers, with US$79 struck through, and 12 months of updates. It is promised by 30 Nov 2026, with a refund if it is late. Tokens are spent on your own agent plan. The struck-through US$79 is the list price on that pre-sale. A price for after the pre-sale ends is not published. The license is PolyForm Shield 1.0.0. Free to use, including at work, and not for building a competing product. Versions up to 0.5.1 were MIT. The code is readable. It is source-available. It is not OSI open source. Pro lives in a private repo. [npm](https://www.npmjs.com/package/ilse-design) and the GitHub repo both show v0.10.1, 29 Oct 2026. The repo has 8 stars. The site says "Ilse has no server to send your code to." It holds no keys, has no account, and the bar exists only on the dev server, so a production build ships nothing. A SOC 2 report is not published. A support email is not published. Limits: React only (Next.js, Vite, CRA, Remix, Astro), including Tailwind, shadcn/ui, Radix, and MUI. Node 18+. No affiliate program was found. ilse.design/affiliates returns 404. Commission: not published. Use it when the app is React and a click in the browser should land on a file and line in the repo. Skip it when the app is not React, when you need an OSI open-source license, or when you need a pass or fail instead of an edit. That verdict is Reticle. Skip Pro if you need the feature already shipped. The pre-sale says 30 Nov 2026. ## Reticle [Reticle](https://reticle.sh/) calls itself "a verification layer for AI coding agents." A dev-only SDK inside the web app exposes DOM, network, routing, console, animations, and framework or store state (zustand, Redux, TanStack Query, Pinia, and more) as MCP tools. The agent states the expected result, acts, and gets a verdict: pass, fail, or "couldn't tell" (`unknown`), with evidence and a file and line. File and line is on React. The [docs](https://docs.reticle.sh/what-is-reticle) say it is "not a screenshot tool and not a browser automation library." It is for a web app you can run as a dev build. Tools: `reticle_look`, `reticle_act_and_wait`, `reticle_observe`, `reticle_assert`, and `reticle_verify`. `npx @reticlehq/server init` adds two dev dependencies and a build plugin, and writes `.reticle.json`. It appends rules to CLAUDE.md and AGENTS.md and installs prompt-capture hooks. Opt out with `--no-prompt-capture` or `--no-mcp`. `reticle setup install` registers MCP with about 17 agents. There is a Claude Code plugin. The vendor warns that `npx reticle` is an unrelated package. Clients named: Claude Code, Cursor, Codex, Copilot, Windsurf, VS Code, Zed, Gemini CLI, OpenCode, Antigravity, Warp, Kiro, Amazon Q, Cline, Roo Code, Amp, Continue, and Factory Droid. The vendor also says about 15 more, and any MCP agent. The SDK and the engine are free. The hosted platform (app.reticle.sh: run history, CI replay, team) has a free plan and asks for no card. Paid Team and Enterprise prices are not published. The page says those tiers "start with a conversation." Model names are not published. The agent is yours. A support email is not published. The [GitHub LICENSE](https://github.com/reticlehq/reticle), the README, and the [npm metadata](https://www.npmjs.com/package/@reticlehq/server) say every npm package, including the server, the CLI, and the MCP, is Apache-2.0. The Tauri crate is MIT. The reticle.sh FAQ says the server, CLI, and MCP packages are "source-available under FSL-1.1-ALv2", and that enterprise features use their own license with a key. GitHub's API reports the license as "Other." The GitHub license file says Apache-2.0. The reticle.sh FAQ says FSL-1.1-ALv2. Before you link a project, no code, DOM, network, state, or console leaves the machine. The bridge binds to 127.0.0.1 behind a pairing token, and the SDK is stripped from production builds. Anonymous usage telemetry is on by default. Turn it off with `reticle telemetry disable`, `RETICLE_TELEMETRY=0`, or `DO_NOT_TRACK=1`. Captured prompts are stored redacted in `.reticle/` and sent with runs on linked projects unless `"shareRequests": false`. An opt-in production mode uses a signed activate loader. A SOC 2 report is not published on the pages opened. Node 20.11 or newer. It needs a dev build. React with Vite, and Next.js, are proven in CI. Vue, Svelte, Angular, and others are listed on the frameworks page. Electron and Tauri are supported. The driven browser is Chromium. The vendor lists its own weak spots: pixel regressions, sites you do not own, source lines on Vue and Angular, and cross-browser rendering. It is not an accessibility auditor. The benchmark figures below are the vendor's own claims, not a test I ran. The vendor says 85 of 88 seeded bugs were caught, against 59 for Playwright. It says about 480 tokens to re-run a 4-flow suite, against about 120k for Playwright and about 129k for DevTools. The FAQ elsewhere says "about 240 tokens." The vendor states both token figures. The vendor also claims 600K+ npm downloads and 1.3k stars. The GitHub API shows 1,301 stars. Release: v3.9.0 on 29 Oct 2026. The repo was last pushed on 2 Nov 2026. No affiliate program was found. reticle.sh/affiliates and /partners return 404. Commission: not published. Use it when you want pass, fail, or unknown, plus evidence, from inside a dev build, with a file and line on React. Skip it for pixel diffs, a site you do not own, Vue or Angular source lines, or an accessibility audit. Skip it if you need a published price for the hosted team plan. That price is not published. ## Chrome DevTools MCP [Chrome DevTools MCP](https://developer.chrome.com/docs/devtools/agents) is "Chrome DevTools for agents." The [repo](https://github.com/ChromeDevTools/chrome-devtools-mcp) says it lets a coding agent "control and inspect a live Chrome browser." It gives performance traces and insights, network requests, screenshots, and console messages with source-mapped stack traces, and it can drive the page through Puppeteer. It ships as an MCP server and as the `chrome-devtools` CLI, with skills for accessibility, cookies, LCP, memory leaks, and troubleshooting. A `--slim` tool set exists. It is free. It does not store a shareable bug link. The config in the README: ```json { "command": "npx", "args": ["-y", "chrome-devtools-mcp@latest"] } ``` Plugins exist for Claude Code, Copilot in VS Code, and Gemini CLI. It can attach to a Chrome that is already running, and it has `--headless` and `--isolated`. The client guide lists more than 30, including Amp, Antigravity, Claude Code, Cline, Codex, Copilot, Cursor, Gemini CLI, JetBrains, Kiro, Warp, Windsurf, and Grok Build CLI. Model names are not published. This server does not pick a model. Your agent does. Price: free. License: Apache-2.0. The repo shows v1.12.0 on 22 Oct 2026, and the last push on 2 Nov 2026. The repo has 54.6k stars. A paid tier is not published. A support email is not published. A SOC 2 report for this repo is not published. The README's safety note: it "exposes content of the browser instance to the MCP clients allowing them to inspect, debug, and modify any data in the browser," so do not point it at a session that holds secrets you would not hand to the agent. Google usage statistics are on by default. Opt out with `--no-usage-statistics`. They are off when `CI` is set. Performance tools may send trace URLs to the Google CrUX API. `--no-performance-crux` disables that. npm update checks run by default. Officially it supports Google Chrome and Chrome for Testing. Other Chromium browsers "may work." It wants Node LTS and current stable Chrome. No affiliate program. It is a Google open-source project. Commission: not published. Use it when the agent should drive Chrome and read the network, the console, and a performance trace, and you do not need a hosted recording. Skip it for Firefox or Safari. Skip it when a teammate needs a link that replays the bug. That is Jam or Faylee. Skip the default if usage statistics going to Google is a problem, and pass `--no-usage-statistics`. ## How to choose Match the tool to the thing the agent should see. You have a bug in Chrome and you want a link. Jam, if 30 free Jams is enough, or if $14 per creator a month billed yearly is the team shape you want. Faylee, if the replay has to stay on the machine until you share, or if you want $15 a month or $12 a month billed yearly ($144 a year), with your own bucket on Team. You want the click to hit a React file. ilse. The core is free. Pro is a pre-sale, not a shipped plan: US$49 for the first 10 buyers, list US$79, promised by 30 Nov 2026. The license is PolyForm Shield, not an OSI open-source license. You want a verdict. Reticle. The SDK is free. The GitHub license file says Apache-2.0. The site FAQ says FSL-1.1-ALv2 for the server, the CLI, and the MCP. The hosted paid price is not published. You want to drive Chrome and you do not need a stored recording. Chrome DevTools MCP. Free. Apache-2.0. Usage statistics are on unless you turn them off. What still belongs to a person, once an agent can see the screen, is in [The Hidden Reality of Running a Business with AI Agents](https://www.dharmikjagodana.com/blogs/what-nobody-tells-you-about-ai-automation.md). What to stop handing over is in [Building in the Age of AI: What Humans Should Stop Doing](https://www.dharmikjagodana.com/blogs/building-in-the-age-of-ai-what-humans-should-stop-doing.md). ## Which app context tools for solo builders? Match the tool to the artifact. A recording, a file and line, a verdict, or a live Chrome. Then stop. ## FAQ ### What is the cheapest way to give a coding agent a bug recording? Jam and Faylee both start at $0, on pages checked 2 Nov 2026. Jam's free plan is 30 Jams, recordings up to 5 minutes, and the pricing page lists "Debug Jams via MCP". Faylee's free plan is 30 recordings a month, kept 14 days, and the MCP server is on every plan. Chrome DevTools MCP is also free. It drives Chrome. It does not store the recording as a link. ### Is ilse open source? No. The license is PolyForm Shield 1.0.0. The code is free to use, including at work, and it is source-available. It is not an OSI open-source license. You may not use it to build a competing product. Versions up to 0.5.1 were MIT. Pro lives in a private repo. ### What license does Reticle use? The GitHub license file says Apache-2.0. The reticle.sh FAQ says FSL-1.1-ALv2. The README and the npm metadata also say Apache-2.0 for the npm packages, including the server, the CLI, and the MCP. The Tauri crate is MIT. ### Does Chrome DevTools MCP send data to Google? The README says usage statistics are on by default. Turn them off with `--no-usage-statistics`. They are off when `CI` is set. Performance tools may send trace URLs to the Google CrUX API. `--no-performance-crux` disables that. The same README says the server exposes the browser's content to the MCP client, so keep secrets out of that browser. ### Which one works without a browser extension? ilse. The site says "No extension, no app, no account." The primary flow is `npx ilse-design@latest` on the dev server. A Chrome extension is listed as optional. Chrome DevTools MCP runs as `npx chrome-devtools-mcp@latest`. It is a local MCP server, not a browser extension. Faylee's recorder is a Chrome extension. Recording links and the widget work in a desktop browser. The extension does not. Jam records in Chromium browsers, with Safari through Jam for Mac. Reticle connects through a dev-only SDK and a local daemon. Find me on [X](https://x.com/dharmikjagodana). New posts show up on X. [Follow new posts on X](https://x.com/dharmikjagodana) [All posts](https://www.dharmikjagodana.com/blogs.md) ## Related - [5 Best Tools for Running Multiple AI Coding Agents in Parallel (2026)](https://www.dharmikjagodana.com/blogs/best-multi-agent-coding-workspaces-for-solo-builders.md): Tools for multiple AI coding agents, compared on price, MCP, and which CLIs they run. Five managers for a solo builder, from pages checked Oct 26, 2026. - [5 Best AI Agent Sandboxes for Solo Builders (2026)](https://www.dharmikjagodana.com/blogs/best-ai-agent-sandboxes-for-solo-builders.md): AI agent sandboxes for a solo builder, compared on price, free credit, and MCP. Five ways to run agent code, from the vendor pages checked Oct 26, 2026. - [5 Best Computer-Use Tools for AI Agents (and How to Run Them Safely) (2026)](https://www.dharmikjagodana.com/blogs/best-computer-use-tools-for-ai-agents.md): Computer use tools for AI agents, compared for builders who let a model use a screen. Five vendor options and the shared safety rules. Last checked 2 Nov 2026.