Editor Harness 0.1.9

Editor Harness 0.1.9 for Mac

Editor Harness is a video editor you direct. Tell your AI assistant what the scene needs, point at the picture, and review its drafts beside your current edit. You decide what stays. The full editor, with the timeline, scopes and shortcuts you know, is there whenever you want to take over.

This is version 0.1.9 (build 12). Titles get fonts, saved styles and templates, captions work in 25 languages, Before plays along with your edit, and you can duplicate a project. You can edit, and work with your own assistant, without an account. Export needs a subscription: Standard starts with a 7-day free trial and no card, and Pro is invite only.

New in this version

Titles, captions and pictures

• Fonts that come with the app. Twelve open-licence font families come with Editor Harness, listed under Bundled in the Title inspector's Font menu. To use your own, choose Import Font… at the bottom of that menu, or File ▸ Import ▸ Font…, and it's listed under Imported. A title set in a bundled or imported font keeps that font file, so it looks the same on another Mac.
• Paint for titles. In the Title inspector, fill a title with a gradient, choose its outline's colour, and set its shadow's colour, blur and offset.
• Saved styles. Style a title, then choose Save Style… to keep its font, size, colours, outline, shadow, box and animation, without its words. Apply Style uses it on any title, in any project on this Mac. A title that uses a saved style offers Update to Latest when the style has changed. Manage Styles… renames and deletes styles, with Undo, and Bring In Saved Looks copies the colour Looks you saved earlier into Styles.
• 39 title templates. The Titles browser has new templates: lower thirds, kinetic titles, openers, chapter cards, callouts, quotes, end cards and social headlines. Each one fits wide, vertical and square frames.
• Captions in 25 languages. Add Captions lists every language Editor Harness can hear, with your Mac's language first when it's one of them. Captions can animate: each word pops or rises in as it's spoken, words light up as they're spoken, or each caption fades in and out.
• Pictures and logos. PNG, JPEG, HEIC and TIFF pictures now import as stills. A placed still runs 4 seconds, takes opacity and position like any clip, and a logo's transparent background stays transparent.
• Clearer title messages. When a title setting is out of range, the inspector says which setting and the range it takes, such as "Size goes from 10.8 to 256 px in this frame."
• The Font menu stays current, however you open it, including with the keyboard or VoiceOver, and it lists a font as soon as your assistant imports one.
• Your assistant can place a template with your words, import a font, apply a saved style, and offer a new style. You choose Save or Not Now.

Before plays along

• In the second view, Before now plays alongside your edit while it plays, instead of waiting for playback to stop, and its caption ends in Live. If your Mac can't keep up with both pictures, Before shows half the frames, or pauses, and a line under it says why: memory, heat, load or Low Power Mode. While you scrub or skip, it updates when playback stops.
• Your assistant can read what the second view shows while it plays, and how it's keeping up.

Libraries

• Duplicate a project. Control-click a project in the list of libraries and choose Duplicate. A copy of its current edit appears beside it, with "copy" after its name, and uses the same footage. A copy of a copy is numbered, as in Finder: "Trailer copy" gives "Trailer copy 2".
• Copy into Library, or leave files in place. File ▸ Import ▸ Media… now asks where the originals live. Copy into Library copies them into the Library and leaves your source files unchanged. Leave Files in Place keeps them where they are, so their drive must be connected to play them. Your last choice is the next default. A folder dropped on Editor Harness in the Dock still leaves its files in place.
• Open Recent says why. A Library in File ▸ Open Recent that can't be opened says why, and offers Remove from List, or Locate… if it was moved.
• Fixed from 0.1.8's known issues. A Library moved to another drive keeps its Assistant References folder, so there's nothing to choose again. A Library copied in Finder stays a copy, with its own assistant access, even after you move the original to another folder on the same drive.
• iCloud. A Library moved out of iCloud Drive now opens. Before, it could be refused as if it were still synced.
• VoiceOver works in the list of libraries: pressing a project opens it, and pressing a Library shows or hides its projects.
• Clearer messages. When an import stops, the message names the file and, when it's known, what stopped it: a file that changed or moved, no permission, a full drive, or the Library changing at the same time. An assistant set up for a folder that now holds something else is told that its project is in a Library kept elsewhere.
• Your assistant can import a clip saved straight in your home folder, not only clips inside a folder.

Fixes

• Long timelines, with many clips, transitions or effects, update without holding up the window.
• Quitting, or closing a window, waits for edits and clip notes that are still being saved.
• Rename a project from its title in the toolbar or with File ▸ Rename Project…, and Undo puts the old name back.
• A file dropped from Finder where it can't go leaves nothing behind.
• Dictation turns the microphone off as soon as it's done.
• If your Mac's clock was set ahead while you were signed in, export no longer stays paused after you correct the clock: the next licence check online lifts the pause.
• Making captions from Footage covers a whole clip whose sound ends slightly before its picture.
• Your assistant's captions and beat markers follow a clip that plays at a changed constant speed.
• Unusual or damaged Final Cut Pro XML files are refused with a message instead of stopping Editor Harness.

New in 0.1.8

• Your projects live in a Library: one file in Finder that holds them. File ▸ New ▸ Library… makes one, File ▸ Open Recent and File ▸ Open Library… (⌘O) open one, and File ▸ Relink Files… reconnects footage that has moved. Projects from earlier versions become libraries when you choose Update.

For 0.1.8 in full, and earlier versions, see What's New: https://www.editorharness.com/changelog

Accounts, trials and export

• You don't need an account to edit, save or work with your assistant. Signing in turns on export.
• Choose Sign In… in the Editor Harness menu, or Sign In with Browser… in Settings ▸ Account. New here? Choose Start Free Trial… in the sign-in sheet or in Settings ▸ Account. Both finish in your browser.
• Your 7-day free trial of Standard starts the first time you sign in on a Mac. No card is needed, and nothing is charged automatically when it ends. To keep exporting, subscribe from your account page.
• Standard is US$9.99 a month after the trial, until you cancel, for up to two Macs. Taxes and local currency are shown at checkout.
• Subscribe… and Manage Subscription… open your account page in your browser. When you come back, Editor Harness checks your licence straight away, so a new subscription turns on export without waiting.
• Editor Harness checks your licence again shortly before it runs out. If it lapses, Editor Harness normally checks again every hour while you're online; it can wait longer if the account service asks it to, or if this version can't read the licence. Offline, export keeps working until the date Editor Harness shows you, at most 7 days after the last check.
• If your licence can't be checked, because you've been offline too long or this Mac's date and time are wrong, export pauses and Editor Harness says why. Editing carries on. It says your subscription ended only when your account no longer has access.
• Pro is invite only, with a private offer for each invited account. Pro adds ProRes and other professional formats, LUT import, searching all your footage, the colour node graph and other professional tools.

Requirements

• A Mac with Apple silicon and macOS 27 or later. 16 GB of memory is recommended.
• The download is about 1.9 GB. Every model the app uses is included, so it downloads nothing else and works offline.

Install

• Open EditorHarness.dmg and double-click Editor Harness. It installs itself in your Applications folder; if your Mac account can't add apps there, it asks you to drag it in instead.
• The app is signed with Developer ID and notarised by Apple. The first time you open it, macOS asks the usual question for an app downloaded from the internet.
• macOS then tells you a background item was added. It runs the app's on-device models, starts only when Editor Harness or your assistant needs them, and stops when they're idle.

What you can do

Edit on your Mac.

• Import H.264 and HEVC video, HDR included, with AAC or PCM audio, and WAV, AIFF, CAF and AAC audio. PNG, JPEG, HEIC and TIFF pictures come in as stills. ProRes and other professional formats need Pro.
• The picture comes first: the viewer sits on top, with the viewer bar and a strip of tabs under it, and your assistant beside them. The Browser opens from the toolbar.
• Choose the job you're doing in the strip. Its controls open in the deck below, and Timeline and Adjust show the timeline, the controls or both. Short choices sit in the panel instead of in pop-up menus.
• Prefer the earlier layout? Settings ▸ General ▸ Studio Layout switches the next window you open to Classic.
• Redo sits beside Undo in the toolbar.
• A new Grid window opens with Instruments showing and your assistant below it. Choose Instruments to show or hide that pane; what it reads follows your work. New Classic windows start with Instruments hidden.
• The second view opens with both ...

Editor Harness 0.1.8

Editor Harness 0.1.8 for Mac

Editor Harness is a video editor you direct. Tell your AI assistant what the scene needs, point at the picture, and review its drafts beside your current edit. You decide what stays. The full editor, with the timeline, scopes and shortcuts you know, is there whenever you want to take over.

This is version 0.1.8 (build 11). Your projects now live in a Library: one file in Finder that holds them all. You can edit, and work with your own assistant, without an account. Export needs a subscription: Standard starts with a 7-day free trial and no card, and Pro is invite only.

New in this version

• Your projects live in a Library. A Library is one file in Finder. It holds your projects and everything you and your assistant do to your footage. Your original footage files stay where they are. Double-click a Library to open it. You can have as many as you like.
• Make a Library. Choose File ▸ New ▸ Library…, give it a name, and choose where to keep it. It goes in your Movies folder unless you choose another place.
• Open a Library. File ▸ Open Recent lists the libraries you've used. File ▸ Open Library… (⌘O) finds any other. The libraries you have open are listed in the window, each with its projects. Click a project to open it. Each Library can be renamed, shown in Finder or closed from its menu in that list, and File ▸ Close Library closes the one you're in.
• Add a project. File ▸ New ▸ Project… (⌘N) adds a project to the Library you're in.
• Move it, and it's found again. Close a Library, then move or rename it in Finder, even while Editor Harness isn't running. It still opens from Open Recent. If Editor Harness can't find it, it says where the Library was last, or which drive isn't connected. Choose Locate… to show it where the Library is now, or Remove from List.
• Footage comes in through Import. Choose File ▸ Import ▸ Media… to add footage to the Library you're in. Or drop a folder of footage on Editor Harness in the Dock, and it becomes a new project in that Library, named after the folder.
• Footage that has moved. Clips whose original files have moved show Original Missing. Choose File ▸ Relink Files… and pick the folder they're in now. Editor Harness shows what it found before it connects anything.
• Your projects from earlier versions. They're still listed, marked as made by an earlier version. To open one, choose Update when Editor Harness asks, and it becomes a Library with the same name, in the same place. Nothing is deleted, and nothing inside is moved or changed. A project Editor Harness made for you on its first launch, which you never saved anywhere, moves to your Movies folder as a Library.
• With no Library open, including the first time you open Editor Harness, the window asks where to keep your work. Name a Library, choose a place and choose Create Library, or choose Open Library…. Nothing is made until you choose. The Welcome guide follows once a Library is open.
• Your assistant can list your libraries and the projects in them, open one, and make a new project in a Library. It can also find footage that has moved and relink it.

New in 0.1.7

• Check for Updates… shows its answer. Choosing it opens Settings ▸ Updates, which shows the check, the download with its progress, then Restart Now once the new version is ready, or that you're up to date. Updates found by the automatic hourly check still download quietly.

For 0.1.6 and earlier, see What's New: https://www.editorharness.com/changelog

Accounts, trials and export

• You don't need an account to edit, save or work with your assistant. Signing in turns on export.
• Choose Sign In… in the Editor Harness menu, or Sign In with Browser… in Settings ▸ Account. New here? Choose Start Free Trial… in the sign-in sheet or in Settings ▸ Account. Both finish in your browser.
• Your 7-day free trial of Standard starts the first time you sign in on a Mac. No card is needed, and nothing is charged automatically when it ends. To keep exporting, subscribe from your account page.
• Standard is US$9.99 a month after the trial, until you cancel, for up to two Macs. Taxes and local currency are shown at checkout.
• Subscribe… and Manage Subscription… open your account page in your browser. When you come back, Editor Harness checks your licence straight away, so a new subscription turns on export without waiting.
• Editor Harness checks your licence again shortly before it runs out. If it lapses, Editor Harness normally checks again every hour while you're online; it can wait longer if the account service asks it to, or if this version can't read the licence. Offline, export keeps working until the date Editor Harness shows you, at most 7 days after the last check.
• If your licence can't be checked, because you've been offline too long or this Mac's date and time are wrong, export pauses and Editor Harness says why. Editing carries on. It says your subscription ended only when your account no longer has access.
• Pro is invite only, with a private offer for each invited account. Pro adds ProRes and other professional formats, LUT import, searching all your footage, the colour node graph and other professional tools.

Requirements

• A Mac with Apple silicon and macOS 27 or later. 16 GB of memory is recommended.
• The download is about 1.9 GB. Every model the app uses is included, so it downloads nothing else and works offline.

Install

• Open EditorHarness.dmg and double-click Editor Harness. It installs itself in your Applications folder; if your Mac account can't add apps there, it asks you to drag it in instead.
• The app is signed with Developer ID and notarised by Apple. The first time you open it, macOS asks the usual question for an app downloaded from the internet.
• macOS then tells you a background item was added. It runs the app's on-device models, starts only when Editor Harness or your assistant needs them, and stops when they're idle.

What you can do

Edit on your Mac.

• Import H.264 and HEVC video, HDR included, with AAC or PCM audio, and WAV, AIFF, CAF and AAC audio. ProRes and other professional formats need Pro.
• The picture comes first: the viewer sits on top, with the viewer bar and a strip of tabs under it, and your assistant beside them. The Browser opens from the toolbar.
• Choose the job you're doing in the strip. Its controls open in the deck below, and Timeline and Adjust show the timeline, the controls or both. Short choices sit in the panel instead of in pop-up menus.
• Prefer the earlier layout? Settings ▸ General ▸ Studio Layout switches the next window you open to Classic.
• Redo sits beside Undo in the toolbar.
• A new Grid window opens with Instruments showing and your assistant below it. Choose Instruments to show or hide that pane; what it reads follows your work. New Classic windows start with Instruments hidden.
• The second view opens with both pictures the same size.
• A new project's first event takes the project's name. Choose File ▸ New ▸ Event… (⌥N) to add another event.
• Edit by transcript. Transcripts are made on your Mac: strike out words to cut them, and drag lines to reorder.
• Add captions, with doubtful words flagged and reading speed checked.
• Compare takes in take lanes, and swap one in. Swap Take works where three caption rows overlap at a take's edge. Where a cut would fall inside a clip's sound fade-out, it ends the line at its last word instead; where a cut would still split a fade, it says which fade and how short to make it.
• Ramp speed with grips and a speed curve that marks risky frames, and ride speed and music level by hand.
• After colour work, see the scene's shots side by side, with a wipe to compare them.

Connect your own assistant.

• Turn on Claude Code, Codex, Cursor, Gemini CLI, VS Code or the Claude app in Settings ▸ Assistants, or choose Connect an Assistant…. Other assistants that support MCP use the command shown there.
• You connect an assistant once, and it works in every project. Editor Harness adds itself through each assistant's own command or settings file. It shows you exactly what it will run or write, and keeps a copy of the file first.
• After you turn one on, its row says what to do next: start a new session, or quit and reopen the app. It then reads Connected, and Working in “Project” while your assistant works there. While an assistant is connected, the assistant column names it.
• Turning on Claude Code also adds the Editor Harness skill and helper agents to ~/.claude. Turning it off removes them, unless you've changed them.
• Settings ▸ Assistants puts the switch that lets assistants work in Editor Harness first, and groups what an assistant may do under three headings.
• Your assistant uses your own plan with its provider. Editor Harness doesn't charge for it.
• Your assistant works with your project's clips as you do: it can import them, place them from the Browser, start a new project, rate, tag and add notes to clips, and look at clips once they're in a draft. Previewing a clip before it's placed, and searching all your footage, are part of Pro.
• Directions go to an assistant working in your project. While none is, the assistant column says so, and Send says why it waits.

See what your assistant does, and decide.

• While it works, the editor lights up what it touches and says what it's doing.
• Its changes arrive as drafts: Apply Draft, Request Changes or Discard, in the viewer bar. By default it leaves each draft for you, and applies one itself only when you ask. For a job you set to Do It and Tell Me, it may apply its own draft, then says what it did.
• Every change in a draft is marked on the timeline, and you can keep or restore each one on its own. Restore works through dissolves, crossfades and blends, on a captioned interview for a Blade, and for a clip's first removed range or its start, and the captions come back with it. W...

Editor Harness 0.1.7

Editor Harness 0.1.7 for Mac

Editor Harness is a video editor you direct. Tell your AI assistant what the scene needs, point at the picture, and review its drafts beside your current edit. You decide what stays. The full editor, with the timeline, scopes and shortcuts you know, is there whenever you want to take over.

This is version 0.1.7 (build 10). Check for Updates… now shows you what it finds. You can edit, and work with your own assistant, without an account. Export needs a subscription: Standard starts with a 7-day free trial and no card, and Pro is invite only.

New in this version

• Check for Updates… shows its answer. Choosing it opens Settings ▸ Updates, which shows the check, the download with its progress, then Restart Now once the new version is ready, or that you're up to date. Updates found by the automatic hourly check still download quietly.

New in 0.1.6

• A Welcome that walks you through it. The Welcome now shows its three steps in order and highlights the one to do next, with its button: connect your assistant, then choose your footage folder, and your assistant makes the project from it. Start Editing becomes the default once every step is done. No footage folder yet? gives a request that has your assistant make a project and ask you which folder to bring in.
• One request to start. Choose your footage folder and the Welcome writes the request for you, such as “Make a new Editor Harness project called “Interview” from my footage in …”. Copy it and paste it into a new chat in your assistant. The Welcome says what your assistant asks before it first uses Editor Harness, and what to allow.
• Your assistant can start a project from nothing. It makes the project, brings in the footage from the folder you chose, and tells you what's in it.
• Where an assistant can bring footage from. An assistant brings in footage only from a folder in your home folder or on a connected drive, never from hidden folders, Library, app or library bundles, or your projects folder, and it checks every folder and file it reads.
• The Claude app. Install in Claude… now says what happens next: Claude opens its install page with a warning, and you press Install there. Claude's install page shows the Editor Harness icon, and the row then reads Added to Claude while it waits for your first chat. The Claude app gets every Editor Harness tool from the start.
• Codex asks before it uses an Editor Harness tool that can make changes, and waits up to 30 seconds for Editor Harness to start.
• Claude Code also gets the Editor Harness skill and helper agents. If they can't all be added, the row says so and offers Retry Helpers.
• Each assistant's row says how to start: which app, which kind of chat or session, and what to paste. If it isn't connecting, Not connecting? says what to check. T3 Code connects through Codex or Claude Code, and the row says so.
• An assistant's row can open the project it's working in, in this window, as File ▸ Open Recent does.
• Editor Harness gets its helper ready at launch, so an assistant's first call answers sooner.
• The disk image says you can also double-click the app to install it.

Accounts, trials and export

• You don't need an account to edit, save or work with your assistant. Signing in turns on export.
• Choose Sign In… in the Editor Harness menu, or Sign In with Browser… in Settings ▸ Account. New here? Choose Start Free Trial… in the sign-in sheet or in Settings ▸ Account. Both finish in your browser.
• Your 7-day free trial of Standard starts the first time you sign in on a Mac. No card is needed, and nothing is charged automatically when it ends. To keep exporting, subscribe from your account page.
• Standard is US$9.99 a month after the trial, until you cancel, for up to two Macs. Taxes and local currency are shown at checkout.
• Subscribe… and Manage Subscription… open your account page in your browser. When you come back, Editor Harness checks your licence straight away, so a new subscription turns on export without waiting.
• Editor Harness checks your licence again shortly before it runs out. If it lapses, Editor Harness normally checks again every hour while you're online; it can wait longer if the account service asks it to, or if this version can't read the licence. Offline, export keeps working until the date Editor Harness shows you, at most 7 days after the last check.
• If your licence can't be checked, because you've been offline too long or this Mac's date and time are wrong, export pauses and Editor Harness says why. Editing carries on. It says your subscription ended only when your account no longer has access.
• Pro is invite only, with a private offer for each invited account. Pro adds ProRes and other professional formats, LUT import, searching your whole footage library, the colour node graph and other professional tools.

Requirements

• A Mac with Apple silicon and macOS 27 or later. 16 GB of memory is recommended.
• The download is about 1.9 GB. Every model the app uses is included, so it downloads nothing else and works offline.

Install

• Open EditorHarness.dmg and double-click Editor Harness. It installs itself in your Applications folder; if your Mac account can't add apps there, it asks you to drag it in instead.
• The app is signed with Developer ID and notarised by Apple. The first time you open it, macOS asks the usual question for an app downloaded from the internet.
• macOS then tells you a background item was added. It runs the app's on-device models, starts only when Editor Harness or your assistant needs them, and stops when they're idle.

What you can do

Edit on your Mac.

• Import H.264 and HEVC video, HDR included, with AAC or PCM audio, and WAV, AIFF, CAF and AAC audio. ProRes and other professional formats need Pro.
• The picture comes first: the viewer sits on top, with the viewer bar and a strip of tabs under it, and your assistant beside them. The Browser opens from the toolbar.
• Choose the job you're doing in the strip. Its controls open in the deck below, and Timeline and Adjust show the timeline, the controls or both. Short choices sit in the panel instead of in pop-up menus.
• Prefer the earlier layout? Settings ▸ General ▸ Studio Layout switches the next window you open to Classic.
• Redo sits beside Undo in the toolbar.
• A new Grid window opens with Instruments showing and your assistant below it. Choose Instruments to show or hide that pane; what it reads follows your work. New Classic windows start with Instruments hidden.
• The second view opens with both pictures the same size.
• A new project's first event takes the project's name. Choose File ▸ New ▸ Event… (⌥N) to add another event, and File ▸ Open Project… (⌘O) to open a project.
• Edit by transcript. Transcripts are made on your Mac: strike out words to cut them, and drag lines to reorder.
• Add captions, with doubtful words flagged and reading speed checked.
• Compare takes in take lanes, and swap one in. Swap Take works where three caption rows overlap at a take's edge. Where a cut would fall inside a clip's sound fade-out, it ends the line at its last word instead; where a cut would still split a fade, it says which fade and how short to make it.
• Ramp speed with grips and a speed curve that marks risky frames, and ride speed and music level by hand.
• After colour work, see the scene's shots side by side, with a wipe to compare them.

Connect your own assistant.

• Turn on Claude Code, Codex, Cursor, Gemini CLI, VS Code or the Claude app in Settings ▸ Assistants, or choose Connect an Assistant…. Other assistants that support MCP use the command shown there.
• You connect an assistant once, and it works in every project. Editor Harness adds itself through each assistant's own command or settings file. It shows you exactly what it will run or write, and keeps a copy of the file first.
• After you turn one on, its row says what to do next: start a new session, or quit and reopen the app. It then reads Connected, and Working in “Project” while your assistant works there. While an assistant is connected, the assistant column names it.
• Turning on Claude Code also adds the Editor Harness skill and helper agents to ~/.claude. Turning it off removes them, unless you've changed them.
• Settings ▸ Assistants puts the switch that lets assistants work in Editor Harness first, and groups what an assistant may do under three headings.
• Your assistant uses your own plan with its provider. Editor Harness doesn't charge for it.
• Your assistant works with your project's clips as you do: it can import them, place them from the Browser, start a new project, rate, tag and add notes to clips, and look at clips once they're in a draft. Previewing a clip before it's placed, and searching your whole footage library, are part of Pro.
• Directions go to an assistant working in your project. While none is, the assistant column says so, and Send says why it waits.

See what your assistant does, and decide.

• While it works, the editor lights up what it touches and says what it's doing.
• Its changes arrive as drafts: Apply Draft, Request Changes or Discard, in the viewer bar. By default it leaves each draft for you, and applies one itself only when you ask. For a job you set to Do It and Tell Me, it may apply its own draft, then says what it did.
• Every change in a draft is marked on the timeline, and you can keep or restore each one on its own. Restore works through dissolves, crossfades and blends, on a captioned interview for a Blade, and for a clip's first removed range or its start, and the captions come back with it. Where it can't be sure a restore is safe, it tells you why.
• The Card shows what your assistant checked and how sure it is. When it needs you, it asks one plain yes-or-no question.
• Point at something in the picture and the column shows its controls; a draft or a question from your as...

Editor Harness 0.1.6

Editor Harness 0.1.6 for Mac

Editor Harness is a video editor you direct. Tell your AI assistant what the scene needs, point at the picture, and review its drafts beside your current edit. You decide what stays. The full editor, with the timeline, scopes and shortcuts you know, is there whenever you want to take over.

This is version 0.1.6 (build 9). It makes connecting your own assistant, and starting your first project with it, much simpler. You can edit, and work with your own assistant, without an account. Export needs a subscription: Standard starts with a 7-day free trial and no card, and Pro is invite only.

New in this version

• A Welcome that walks you through it. The Welcome now shows its three steps in order and highlights the one to do next, with its button: connect your assistant, then choose your footage folder, and your assistant makes the project from it. Start Editing becomes the default once every step is done. No footage folder yet? gives a request that has your assistant make a project and ask you which folder to bring in.
• One request to start. Choose your footage folder and the Welcome writes the request for you, such as “Make a new Editor Harness project called “Interview” from my footage in …”. Copy it and paste it into a new chat in your assistant. The Welcome says what your assistant asks before it first uses Editor Harness, and what to allow.
• Your assistant can start a project from nothing. It makes the project, brings in the footage from the folder you chose, and tells you what's in it.
• Where an assistant can bring footage from. An assistant brings in footage only from a folder in your home folder or on a connected drive, never from hidden folders, Library, app or library bundles, or your projects folder, and it checks every folder and file it reads.
• The Claude app. Install in Claude… now says what happens next: Claude opens its install page with a warning, and you press Install there. Claude's install page shows the Editor Harness icon, and the row then reads Added to Claude while it waits for your first chat. The Claude app gets every Editor Harness tool from the start.
• Codex asks before it uses an Editor Harness tool that can make changes, and waits up to 30 seconds for Editor Harness to start.
• Claude Code also gets the Editor Harness skill and helper agents. If they can't all be added, the row says so and offers Retry Helpers.
• Each assistant's row says how to start: which app, which kind of chat or session, and what to paste. If it isn't connecting, Not connecting? says what to check. T3 Code connects through Codex or Claude Code, and the row says so.
• An assistant's row can open the project it's working in, in this window, as File ▸ Open Recent does.
• Editor Harness gets its helper ready at launch, so an assistant's first call answers sooner.
• The disk image says you can also double-click the app to install it.

Accounts, trials and export

• You don't need an account to edit, save or work with your assistant. Signing in turns on export.
• Choose Sign In… in the Editor Harness menu, or Sign In with Browser… in Settings ▸ Account. New here? Choose Start Free Trial… in the sign-in sheet or in Settings ▸ Account. Both finish in your browser.
• Your 7-day free trial of Standard starts the first time you sign in on a Mac. No card is needed, and nothing is charged automatically when it ends. To keep exporting, subscribe from your account page.
• Standard is US$9.99 a month after the trial, until you cancel, for up to two Macs. Taxes and local currency are shown at checkout.
• Subscribe… and Manage Subscription… open your account page in your browser. When you come back, Editor Harness checks your licence straight away, so a new subscription turns on export without waiting.
• Editor Harness checks your licence again shortly before it runs out. If it lapses, Editor Harness normally checks again every hour while you're online; it can wait longer if the account service asks it to, or if this version can't read the licence. Offline, export keeps working until the date Editor Harness shows you, at most 7 days after the last check.
• If your licence can't be checked, because you've been offline too long or this Mac's date and time are wrong, export pauses and Editor Harness says why. Editing carries on. It says your subscription ended only when your account no longer has access.
• Pro is invite only, with a private offer for each invited account. Pro adds ProRes and other professional formats, LUT import, searching your whole footage library, the colour node graph and other professional tools.

Requirements

• A Mac with Apple silicon and macOS 27 or later. 16 GB of memory is recommended.
• The download is about 1.9 GB. Every model the app uses is included, so it downloads nothing else and works offline.

Install

• Open EditorHarness.dmg and double-click Editor Harness. It installs itself in your Applications folder; if your Mac account can't add apps there, it asks you to drag it in instead.
• The app is signed with Developer ID and notarised by Apple. The first time you open it, macOS asks the usual question for an app downloaded from the internet.
• macOS then tells you a background item was added. It runs the app's on-device models, starts only when Editor Harness or your assistant needs them, and stops when they're idle.

What you can do

Edit on your Mac.

• Import H.264 and HEVC video, HDR included, with AAC or PCM audio, and WAV, AIFF, CAF and AAC audio. ProRes and other professional formats need Pro.
• The picture comes first: the viewer sits on top, with the viewer bar and a strip of tabs under it, and your assistant beside them. The Browser opens from the toolbar.
• Choose the job you're doing in the strip. Its controls open in the deck below, and Timeline and Adjust show the timeline, the controls or both. Short choices sit in the panel instead of in pop-up menus.
• Prefer the earlier layout? Settings ▸ General ▸ Studio Layout switches the next window you open to Classic.
• Redo sits beside Undo in the toolbar.
• A new Grid window opens with Instruments showing and your assistant below it. Choose Instruments to show or hide that pane; what it reads follows your work. New Classic windows start with Instruments hidden.
• The second view opens with both pictures the same size.
• A new project's first event takes the project's name. Choose File ▸ New ▸ Event… (⌥N) to add another event, and File ▸ Open Project… (⌘O) to open a project.
• Edit by transcript. Transcripts are made on your Mac: strike out words to cut them, and drag lines to reorder.
• Add captions, with doubtful words flagged and reading speed checked.
• Compare takes in take lanes, and swap one in. Swap Take works where three caption rows overlap at a take's edge. Where a cut would fall inside a clip's sound fade-out, it ends the line at its last word instead; where a cut would still split a fade, it says which fade and how short to make it.
• Ramp speed with grips and a speed curve that marks risky frames, and ride speed and music level by hand.
• After colour work, see the scene's shots side by side, with a wipe to compare them.

Connect your own assistant.

• Turn on Claude Code, Codex, Cursor, Gemini CLI, VS Code or the Claude app in Settings ▸ Assistants, or choose Connect an Assistant…. Other assistants that support MCP use the command shown there.
• You connect an assistant once, and it works in every project. Editor Harness adds itself through each assistant's own command or settings file. It shows you exactly what it will run or write, and keeps a copy of the file first.
• After you turn one on, its row says what to do next: start a new session, or quit and reopen the app. It then reads Connected, and Working in “Project” while your assistant works there. While an assistant is connected, the assistant column names it.
• Turning on Claude Code also adds the Editor Harness skill and helper agents to ~/.claude. Turning it off removes them, unless you've changed them.
• Settings ▸ Assistants puts the switch that lets assistants work in Editor Harness first, and groups what an assistant may do under three headings.
• Your assistant uses your own plan with its provider. Editor Harness doesn't charge for it.
• Your assistant works with your project's clips as you do: it can import them, place them from the Browser, start a new project, rate, tag and add notes to clips, and look at clips once they're in a draft. Previewing a clip before it's placed, and searching your whole footage library, are part of Pro.
• Directions go to an assistant working in your project. While none is, the assistant column says so, and Send says why it waits.

See what your assistant does, and decide.

• While it works, the editor lights up what it touches and says what it's doing.
• Its changes arrive as drafts: Apply Draft, Request Changes or Discard, in the viewer bar. By default it leaves each draft for you, and applies one itself only when you ask. For a job you set to Do It and Tell Me, it may apply its own draft, then says what it did.
• Every change in a draft is marked on the timeline, and you can keep or restore each one on its own. Restore works through dissolves, crossfades and blends, on a captioned interview for a Blade, and for a clip's first removed range or its start, and the captions come back with it. Where it can't be sure a restore is safe, it tells you why.
• The Card shows what your assistant checked and how sure it is. When it needs you, it asks one plain yes-or-no question.
• Point at something in the picture and the column shows its controls; a draft or a question from your assistant keeps the Card in view.
• Mark Up, beside Point, holds the frame so you can draw on it to show your assistant what you mean. Your marks go with your next Send and are never exported.
• After you accept a change, your assistant re-checks what it...

Editor Harness 0.1.5

Editor Harness 0.1.5 for Mac

Editor Harness is a video editor you direct. Tell your AI assistant what the scene needs, point at the picture, and review its drafts beside your current edit. You decide what stays. The full editor, with the timeline, scopes and shortcuts you know, is there whenever you want to take over.

This is version 0.1.5 (build 8), the first public release. You can edit, and work with your own assistant, without an account. Export needs a subscription: Standard starts with a 7-day free trial and no card, and Pro is invite only.

Accounts, trials and export

• You don't need an account to edit, save or work with your assistant. Signing in turns on export.
• Choose Sign In… in the Editor Harness menu, or Sign In with Browser… in Settings ▸ Account. New here? Choose Start Free Trial… in the sign-in sheet or in Settings ▸ Account. Both finish in your browser.
• Your 7-day free trial of Standard starts the first time you sign in on a Mac. No card is needed, and nothing is charged automatically when it ends. To keep exporting, subscribe from your account page.
• Standard is US$9.99 a month after the trial, until you cancel, for up to two Macs. Taxes and local currency are shown at checkout.
• Subscribe… and Manage Subscription… open your account page in your browser. When you come back, Editor Harness checks your licence straight away, so a new subscription turns on export without waiting.
• Editor Harness checks your licence again shortly before it runs out. If it lapses, Editor Harness normally checks again every hour while you're online; it can wait longer if the account service asks it to, or if this version can't read the licence. Offline, export keeps working until the date Editor Harness shows you, at most 7 days after the last check.
• If your licence can't be checked, because you've been offline too long or this Mac's date and time are wrong, export pauses and Editor Harness says why. Editing carries on. It says your subscription ended only when your account no longer has access.
• Pro is invite only, with a private offer for each invited account. Pro adds ProRes and other professional formats, LUT import, searching your whole footage library, the colour node graph and other professional tools.

Requirements

• A Mac with Apple silicon and macOS 27 or later. 16 GB of memory is recommended.
• The download is about 1.9 GB. Every model the app uses is included, so it downloads nothing else and works offline.

Install

• Open EditorHarness.dmg and double-click Editor Harness. It installs itself in your Applications folder; if your Mac account can't add apps there, it asks you to drag it in instead.
• The app is signed with Developer ID and notarised by Apple. The first time you open it, macOS asks the usual question for an app downloaded from the internet.
• macOS then tells you a background item was added. It runs the app's on-device models, starts only when Editor Harness or your assistant needs them, and stops when they're idle.

What you can do

Edit on your Mac.

• Import H.264 and HEVC video, HDR included, with AAC or PCM audio, and WAV, AIFF, CAF and AAC audio. ProRes and other professional formats need Pro.
• The picture comes first: the viewer sits on top, with the viewer bar and a strip of tabs under it, and your assistant beside them. The Browser opens from the toolbar.
• Choose the job you're doing in the strip. Its controls open in the deck below, and Timeline and Adjust show the timeline, the controls or both. Short choices sit in the panel instead of in pop-up menus.
• Prefer the earlier layout? Settings ▸ General ▸ Studio Layout switches the next window you open to Classic.
• Redo sits beside Undo in the toolbar.
• A new Grid window opens with Instruments showing and your assistant below it. Choose Instruments to show or hide that pane; what it reads follows your work. New Classic windows start with Instruments hidden.
• The second view opens with both pictures the same size.
• A new project's first event takes the project's name. Choose File ▸ New ▸ Event… (⌥N) to add another event, and File ▸ Open Project… (⌘O) to open a project.
• Edit by transcript. Transcripts are made on your Mac: strike out words to cut them, and drag lines to reorder.
• Add captions, with doubtful words flagged and reading speed checked.
• Compare takes in take lanes, and swap one in. Swap Take works where three caption rows overlap at a take's edge. Where a cut would fall inside a clip's sound fade-out, it ends the line at its last word instead; where a cut would still split a fade, it says which fade and how short to make it.
• Ramp speed with grips and a speed curve that marks risky frames, and ride speed and music level by hand.
• After colour work, see the scene's shots side by side, with a wipe to compare them.

Connect your own assistant.

• Turn on Claude Code, Codex, Cursor, Gemini CLI, VS Code or the Claude app in Settings ▸ Assistants, or choose Connect an Assistant…. Other assistants that support MCP use the command shown there.
• You connect an assistant once, and it works in every project. Editor Harness adds itself through each assistant's own command or settings file. It shows you exactly what it will run or write, and keeps a copy of the file first.
• After you turn one on, its row says what to do next: start a new session, or quit and reopen the app. It then reads Connected, and Working in “Project” while your assistant works there. While an assistant is connected, the assistant column names it.
• Settings ▸ Assistants puts the switch that lets assistants work in Editor Harness first, and groups what an assistant may do under three headings.
• Your assistant uses your own plan with its provider. Editor Harness doesn't charge for it.
• Your assistant works with your project's clips as you do: it can import them, place them from the Browser, start a new project, rate, tag and add notes to clips, and look at clips once they're in a draft. Previewing a clip before it's placed, and searching your whole footage library, are part of Pro.
• Directions go to an assistant working in your project. While none is, the assistant column says so, and Send says why it waits.

See what your assistant does, and decide.

• While it works, the editor lights up what it touches and says what it's doing.
• Its changes arrive as drafts: Apply Draft, Request Changes or Discard, in the viewer bar. By default it leaves each draft for you, and applies one itself only when you ask. For a job you set to Do It and Tell Me, it may apply its own draft, then says what it did.
• Every change in a draft is marked on the timeline, and you can keep or restore each one on its own. Restore works through dissolves, crossfades and blends, on a captioned interview for a Blade, and for a clip's first removed range or its start, and the captions come back with it. Where it can't be sure a restore is safe, it tells you why.
• The Card shows what your assistant checked and how sure it is. When it needs you, it asks one plain yes-or-no question.
• Point at something in the picture and the column shows its controls; a draft or a question from your assistant keeps the Card in view.
• Mark Up, beside Point, holds the frame so you can draw on it to show your assistant what you mean. Your marks go with your next Send and are never exported.
• After you accept a change, your assistant re-checks what it affects further along, and offers any fixes as drafts for you to approve.
• For matters of taste (colour, transitions, titles, speed ramps, clean-up and pacing) it can offer two to four options that really differ, shown in a random order.
• Effects stay on their clips through gap, overwrite and insert edits, and through deleting part of a clip.
• The Card has a key for every decision, and a first line, built from your own footage, that shows the kind of thing you can ask.
• Story structures: ask for two or three ways to tell the story as paper edits, and watch each one on its own.
• Your own tries become drafts too, so you can compare them with your assistant's and undo them cleanly.
• Choose, job by job, what your assistant may do on its own. It shows its plan before it acts, and when you change something it set, it says what happens next.
• Fair comparison, off unless you turn it on: blind labels and a neutral reset between looks.
• Click a scope and your assistant gets the numbers under your click. You can also point at a cut.

Reliability and safety.

• When your assistant cuts on a word, the cut doesn't land inside the word.
• Your assistant's picture search works on clips copied into a project, and for clips already placed it also accepts their Browser entry.
• When a request from your assistant can't be carried out, some refusals say which fields or timeline items are needed, so it can correct the request. A project your assistant creates is the one it then works in, and it is told so.
• If Editor Harness can't read a project's assistant settings, it says so, instead of saying assistants were turned off.
• Importing a project package checks what it may use before copying any media, and uses only media the importer is allowed to read.
• Importing media and project packages is checked strictly, and a refused import leaves nothing behind.
• Damaged or unusual media files are refused safely instead of using too much memory or making the editor stop responding.
• Each project keeps the screenshots, history and plans your assistant saves in its own folder.

Not in this version yet

• iPhone and iPad, which come later.

Known limits

• Still images (JPEG, HEIC and PNG) don't import yet.
• Vertical and Square framing don't yet follow the reframe.
• Check All doesn't yet look for black frames or flash frames.
• Restoring a later range of a captioned clip still refuses and says why. Restore still refuses on wipes, pushes, slides, iris and cross zoom, and says why.
• A clip with a spee...