A page cannot declare its related lists read-only — "+ New" / row edit / row delete are host-resolved from the CHILD object, so a deliberately read-only record page still offers writes #7300

Description

@os-warren

Measured on objectui at the current checkout, against a live seeded app: a read-only "member detail" record page (objectstack-ai/duly#13) rendered 8 "+ New" buttons it had no way to decline.

The gap

PageComponentSchema has no readonly / disabled, and that is a deliberate boundary — ruled 2026-08-12, "editability lives on fields", with EDITABILITY_BOUNDARY_KEYS redirecting an author who writes one. The prescription is right for a field.

It does not reach a related list's CRUD affordances, because those are not fields. RelatedRecordActionsBridge resolves them from the child object:

constrawAff=resolveEffectiveCrudAffordances(childDef,getObjectApiOperations(objectName));constobjectCanCreate=rawAff.create&&can(objectName,'create');

— the child's userActions bucket, intersected with API operations and the principal's grant. Nothing on the page participates. RecordRelatedListProps can decline the opt-in Add-existing picker (add) and row actions, but "+ New", row edit and row delete arrive from the host regardless.

So for a child object that any user may create — here duly_task, where every position holds allowCreate because people do create their own tasks elsewhere in the app — a page whose entire premise is "the manager enters nothing" is handed a create affordance on every task list on it.

The only lever available is object-level (duly_task.userActions.create), which would close creation everywhere — including the screens where it is correct. That is not a workaround, it is a different and wrong change.

Why it is worth a key rather than a doc note

The affordance is not merely cosmetic on a page like this: a manager pressing "+ New" on someone else's task list creates work for that person from a screen documented as read-only, and the write is legal server-side. The page is the only layer that knows this surface is a read surface — the child object is used correctly elsewhere, and the principal's grant is correct too.

Suggested shape

A per-component switch on record:related_listreadonly: true, or affordances: 'none' — consumed where the bridge's handlers are wired in RecordRelatedListBody, narrowing only (never re-opening something the bucket/API/grant already closed, matching the posture createPredicates already takes). A page-level readonly: true that defaults every component would be even better for this use case, but the per-component key is the smaller change and composes.

Related but distinct, both closed: #4646 (related-list "+ New" not consuming userActions.create predicates) and #5153 (the object-list toolbar's half). Those made the object's verdict reach the button. This is about the page having no verdict to give.

🤖 Generated with Claude Code

https://claude.ai/code/session_01SqkTcrxUFci7nqXdbBSe2p

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      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
       blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
      }
      } catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
      })();
      (function(){
      try {
      var __m = "github.com";
      var __re = new RegExp('^' + "github\\.com" + '
      
      Skip to content

      A page cannot declare its related lists read-only — "+ New" / row edit / row delete are host-resolved from the CHILD object, so a deliberately read-only record page still offers writes #7300

      Description

      @os-warren

      Measured on objectui at the current checkout, against a live seeded app: a read-only "member detail" record page (objectstack-ai/duly#13) rendered 8 "+ New" buttons it had no way to decline.

      The gap

      PageComponentSchema has no readonly / disabled, and that is a deliberate boundary — ruled 2026-08-12, "editability lives on fields", with EDITABILITY_BOUNDARY_KEYS redirecting an author who writes one. The prescription is right for a field.

      It does not reach a related list's CRUD affordances, because those are not fields. RelatedRecordActionsBridge resolves them from the child object:

      constrawAff=resolveEffectiveCrudAffordances(childDef,getObjectApiOperations(objectName));constobjectCanCreate=rawAff.create&&can(objectName,'create');

      — the child's userActions bucket, intersected with API operations and the principal's grant. Nothing on the page participates. RecordRelatedListProps can decline the opt-in Add-existing picker (add) and row actions, but "+ New", row edit and row delete arrive from the host regardless.

      So for a child object that any user may create — here duly_task, where every position holds allowCreate because people do create their own tasks elsewhere in the app — a page whose entire premise is "the manager enters nothing" is handed a create affordance on every task list on it.

      The only lever available is object-level (duly_task.userActions.create), which would close creation everywhere — including the screens where it is correct. That is not a workaround, it is a different and wrong change.

      Why it is worth a key rather than a doc note

      The affordance is not merely cosmetic on a page like this: a manager pressing "+ New" on someone else's task list creates work for that person from a screen documented as read-only, and the write is legal server-side. The page is the only layer that knows this surface is a read surface — the child object is used correctly elsewhere, and the principal's grant is correct too.

      Suggested shape

      A per-component switch on record:related_listreadonly: true, or affordances: 'none' — consumed where the bridge's handlers are wired in RecordRelatedListBody, narrowing only (never re-opening something the bucket/API/grant already closed, matching the posture createPredicates already takes). A page-level readonly: true that defaults every component would be even better for this use case, but the per-component key is the smaller change and composes.

      Related but distinct, both closed: #4646 (related-list "+ New" not consuming userActions.create predicates) and #5153 (the object-list toolbar's half). Those made the object's verdict reach the button. This is about the page having no verdict to give.

      🤖 Generated with Claude Code

      https://claude.ai/code/session_01SqkTcrxUFci7nqXdbBSe2p

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          , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
          Skip to content

          A page cannot declare its related lists read-only — "+ New" / row edit / row delete are host-resolved from the CHILD object, so a deliberately read-only record page still offers writes #7300

          Description

          @os-warren

          Measured on objectui at the current checkout, against a live seeded app: a read-only "member detail" record page (objectstack-ai/duly#13) rendered 8 "+ New" buttons it had no way to decline.

          The gap

          PageComponentSchema has no readonly / disabled, and that is a deliberate boundary — ruled 2026-08-12, "editability lives on fields", with EDITABILITY_BOUNDARY_KEYS redirecting an author who writes one. The prescription is right for a field.

          It does not reach a related list's CRUD affordances, because those are not fields. RelatedRecordActionsBridge resolves them from the child object:

          constrawAff=resolveEffectiveCrudAffordances(childDef,getObjectApiOperations(objectName));constobjectCanCreate=rawAff.create&&can(objectName,'create');

          — the child's userActions bucket, intersected with API operations and the principal's grant. Nothing on the page participates. RecordRelatedListProps can decline the opt-in Add-existing picker (add) and row actions, but "+ New", row edit and row delete arrive from the host regardless.

          So for a child object that any user may create — here duly_task, where every position holds allowCreate because people do create their own tasks elsewhere in the app — a page whose entire premise is "the manager enters nothing" is handed a create affordance on every task list on it.

          The only lever available is object-level (duly_task.userActions.create), which would close creation everywhere — including the screens where it is correct. That is not a workaround, it is a different and wrong change.

          Why it is worth a key rather than a doc note

          The affordance is not merely cosmetic on a page like this: a manager pressing "+ New" on someone else's task list creates work for that person from a screen documented as read-only, and the write is legal server-side. The page is the only layer that knows this surface is a read surface — the child object is used correctly elsewhere, and the principal's grant is correct too.

          Suggested shape

          A per-component switch on record:related_listreadonly: true, or affordances: 'none' — consumed where the bridge's handlers are wired in RecordRelatedListBody, narrowing only (never re-opening something the bucket/API/grant already closed, matching the posture createPredicates already takes). A page-level readonly: true that defaults every component would be even better for this use case, but the per-component key is the smaller change and composes.

          Related but distinct, both closed: #4646 (related-list "+ New" not consuming userActions.create predicates) and #5153 (the object-list toolbar's half). Those made the object's verdict reach the button. This is about the page having no verdict to give.

          🤖 Generated with Claude Code

          https://claude.ai/code/session_01SqkTcrxUFci7nqXdbBSe2p

          Metadata

          Metadata

          Assignees

          No one assigned

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            No labels
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            No type

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              None yet

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              No branches or pull requests

              Issue actions

              , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
              Skip to content

              A page cannot declare its related lists read-only — "+ New" / row edit / row delete are host-resolved from the CHILD object, so a deliberately read-only record page still offers writes #7300

              Description

              @os-warren

              Measured on objectui at the current checkout, against a live seeded app: a read-only "member detail" record page (objectstack-ai/duly#13) rendered 8 "+ New" buttons it had no way to decline.

              The gap

              PageComponentSchema has no readonly / disabled, and that is a deliberate boundary — ruled 2026-08-12, "editability lives on fields", with EDITABILITY_BOUNDARY_KEYS redirecting an author who writes one. The prescription is right for a field.

              It does not reach a related list's CRUD affordances, because those are not fields. RelatedRecordActionsBridge resolves them from the child object:

              constrawAff=resolveEffectiveCrudAffordances(childDef,getObjectApiOperations(objectName));constobjectCanCreate=rawAff.create&&can(objectName,'create');

              — the child's userActions bucket, intersected with API operations and the principal's grant. Nothing on the page participates. RecordRelatedListProps can decline the opt-in Add-existing picker (add) and row actions, but "+ New", row edit and row delete arrive from the host regardless.

              So for a child object that any user may create — here duly_task, where every position holds allowCreate because people do create their own tasks elsewhere in the app — a page whose entire premise is "the manager enters nothing" is handed a create affordance on every task list on it.

              The only lever available is object-level (duly_task.userActions.create), which would close creation everywhere — including the screens where it is correct. That is not a workaround, it is a different and wrong change.

              Why it is worth a key rather than a doc note

              The affordance is not merely cosmetic on a page like this: a manager pressing "+ New" on someone else's task list creates work for that person from a screen documented as read-only, and the write is legal server-side. The page is the only layer that knows this surface is a read surface — the child object is used correctly elsewhere, and the principal's grant is correct too.

              Suggested shape

              A per-component switch on record:related_listreadonly: true, or affordances: 'none' — consumed where the bridge's handlers are wired in RecordRelatedListBody, narrowing only (never re-opening something the bucket/API/grant already closed, matching the posture createPredicates already takes). A page-level readonly: true that defaults every component would be even better for this use case, but the per-component key is the smaller change and composes.

              Related but distinct, both closed: #4646 (related-list "+ New" not consuming userActions.create predicates) and #5153 (the object-list toolbar's half). Those made the object's verdict reach the button. This is about the page having no verdict to give.

              🤖 Generated with Claude Code

              https://claude.ai/code/session_01SqkTcrxUFci7nqXdbBSe2p

              Metadata

              Metadata

              Assignees

              No one assigned

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                No type

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                  , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
                  Skip to content

                  A page cannot declare its related lists read-only — "+ New" / row edit / row delete are host-resolved from the CHILD object, so a deliberately read-only record page still offers writes #7300

                  Description

                  @os-warren

                  Measured on objectui at the current checkout, against a live seeded app: a read-only "member detail" record page (objectstack-ai/duly#13) rendered 8 "+ New" buttons it had no way to decline.

                  The gap

                  PageComponentSchema has no readonly / disabled, and that is a deliberate boundary — ruled 2026-08-12, "editability lives on fields", with EDITABILITY_BOUNDARY_KEYS redirecting an author who writes one. The prescription is right for a field.

                  It does not reach a related list's CRUD affordances, because those are not fields. RelatedRecordActionsBridge resolves them from the child object:

                  constrawAff=resolveEffectiveCrudAffordances(childDef,getObjectApiOperations(objectName));constobjectCanCreate=rawAff.create&&can(objectName,'create');

                  — the child's userActions bucket, intersected with API operations and the principal's grant. Nothing on the page participates. RecordRelatedListProps can decline the opt-in Add-existing picker (add) and row actions, but "+ New", row edit and row delete arrive from the host regardless.

                  So for a child object that any user may create — here duly_task, where every position holds allowCreate because people do create their own tasks elsewhere in the app — a page whose entire premise is "the manager enters nothing" is handed a create affordance on every task list on it.

                  The only lever available is object-level (duly_task.userActions.create), which would close creation everywhere — including the screens where it is correct. That is not a workaround, it is a different and wrong change.

                  Why it is worth a key rather than a doc note

                  The affordance is not merely cosmetic on a page like this: a manager pressing "+ New" on someone else's task list creates work for that person from a screen documented as read-only, and the write is legal server-side. The page is the only layer that knows this surface is a read surface — the child object is used correctly elsewhere, and the principal's grant is correct too.

                  Suggested shape

                  A per-component switch on record:related_listreadonly: true, or affordances: 'none' — consumed where the bridge's handlers are wired in RecordRelatedListBody, narrowing only (never re-opening something the bucket/API/grant already closed, matching the posture createPredicates already takes). A page-level readonly: true that defaults every component would be even better for this use case, but the per-component key is the smaller change and composes.

                  Related but distinct, both closed: #4646 (related-list "+ New" not consuming userActions.create predicates) and #5153 (the object-list toolbar's half). Those made the object's verdict reach the button. This is about the page having no verdict to give.

                  🤖 Generated with Claude Code

                  https://claude.ai/code/session_01SqkTcrxUFci7nqXdbBSe2p

                  Metadata

                  Metadata

                  Assignees

                  No one assigned

                    Labels

                    No labels
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                    No type

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                    No projects

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                      No milestone

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                      None yet

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                      No branches or pull requests

                      Issue actions

                      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
                      Skip to content

                      A page cannot declare its related lists read-only — "+ New" / row edit / row delete are host-resolved from the CHILD object, so a deliberately read-only record page still offers writes #7300

                      Description

                      @os-warren

                      Measured on objectui at the current checkout, against a live seeded app: a read-only "member detail" record page (objectstack-ai/duly#13) rendered 8 "+ New" buttons it had no way to decline.

                      The gap

                      PageComponentSchema has no readonly / disabled, and that is a deliberate boundary — ruled 2026-08-12, "editability lives on fields", with EDITABILITY_BOUNDARY_KEYS redirecting an author who writes one. The prescription is right for a field.

                      It does not reach a related list's CRUD affordances, because those are not fields. RelatedRecordActionsBridge resolves them from the child object:

                      constrawAff=resolveEffectiveCrudAffordances(childDef,getObjectApiOperations(objectName));constobjectCanCreate=rawAff.create&&can(objectName,'create');

                      — the child's userActions bucket, intersected with API operations and the principal's grant. Nothing on the page participates. RecordRelatedListProps can decline the opt-in Add-existing picker (add) and row actions, but "+ New", row edit and row delete arrive from the host regardless.

                      So for a child object that any user may create — here duly_task, where every position holds allowCreate because people do create their own tasks elsewhere in the app — a page whose entire premise is "the manager enters nothing" is handed a create affordance on every task list on it.

                      The only lever available is object-level (duly_task.userActions.create), which would close creation everywhere — including the screens where it is correct. That is not a workaround, it is a different and wrong change.

                      Why it is worth a key rather than a doc note

                      The affordance is not merely cosmetic on a page like this: a manager pressing "+ New" on someone else's task list creates work for that person from a screen documented as read-only, and the write is legal server-side. The page is the only layer that knows this surface is a read surface — the child object is used correctly elsewhere, and the principal's grant is correct too.

                      Suggested shape

                      A per-component switch on record:related_listreadonly: true, or affordances: 'none' — consumed where the bridge's handlers are wired in RecordRelatedListBody, narrowing only (never re-opening something the bucket/API/grant already closed, matching the posture createPredicates already takes). A page-level readonly: true that defaults every component would be even better for this use case, but the per-component key is the smaller change and composes.

                      Related but distinct, both closed: #4646 (related-list "+ New" not consuming userActions.create predicates) and #5153 (the object-list toolbar's half). Those made the object's verdict reach the button. This is about the page having no verdict to give.

                      🤖 Generated with Claude Code

                      https://claude.ai/code/session_01SqkTcrxUFci7nqXdbBSe2p

                      Metadata

                      Metadata

                      Assignees

                      No one assigned

                        Labels

                        No labels
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                        No type

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                          None yet

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                          No branches or pull requests

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                          , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
                          Skip to content

                          A page cannot declare its related lists read-only — "+ New" / row edit / row delete are host-resolved from the CHILD object, so a deliberately read-only record page still offers writes #7300

                          Description

                          @os-warren

                          Measured on objectui at the current checkout, against a live seeded app: a read-only "member detail" record page (objectstack-ai/duly#13) rendered 8 "+ New" buttons it had no way to decline.

                          The gap

                          PageComponentSchema has no readonly / disabled, and that is a deliberate boundary — ruled 2026-08-12, "editability lives on fields", with EDITABILITY_BOUNDARY_KEYS redirecting an author who writes one. The prescription is right for a field.

                          It does not reach a related list's CRUD affordances, because those are not fields. RelatedRecordActionsBridge resolves them from the child object:

                          constrawAff=resolveEffectiveCrudAffordances(childDef,getObjectApiOperations(objectName));constobjectCanCreate=rawAff.create&&can(objectName,'create');

                          — the child's userActions bucket, intersected with API operations and the principal's grant. Nothing on the page participates. RecordRelatedListProps can decline the opt-in Add-existing picker (add) and row actions, but "+ New", row edit and row delete arrive from the host regardless.

                          So for a child object that any user may create — here duly_task, where every position holds allowCreate because people do create their own tasks elsewhere in the app — a page whose entire premise is "the manager enters nothing" is handed a create affordance on every task list on it.

                          The only lever available is object-level (duly_task.userActions.create), which would close creation everywhere — including the screens where it is correct. That is not a workaround, it is a different and wrong change.

                          Why it is worth a key rather than a doc note

                          The affordance is not merely cosmetic on a page like this: a manager pressing "+ New" on someone else's task list creates work for that person from a screen documented as read-only, and the write is legal server-side. The page is the only layer that knows this surface is a read surface — the child object is used correctly elsewhere, and the principal's grant is correct too.

                          Suggested shape

                          A per-component switch on record:related_listreadonly: true, or affordances: 'none' — consumed where the bridge's handlers are wired in RecordRelatedListBody, narrowing only (never re-opening something the bucket/API/grant already closed, matching the posture createPredicates already takes). A page-level readonly: true that defaults every component would be even better for this use case, but the per-component key is the smaller change and composes.

                          Related but distinct, both closed: #4646 (related-list "+ New" not consuming userActions.create predicates) and #5153 (the object-list toolbar's half). Those made the object's verdict reach the button. This is about the page having no verdict to give.

                          🤖 Generated with Claude Code

                          https://claude.ai/code/session_01SqkTcrxUFci7nqXdbBSe2p

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                              , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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                              A page cannot declare its related lists read-only — "+ New" / row edit / row delete are host-resolved from the CHILD object, so a deliberately read-only record page still offers writes #7300

                              Description

                              @os-warren

                              Measured on objectui at the current checkout, against a live seeded app: a read-only "member detail" record page (objectstack-ai/duly#13) rendered 8 "+ New" buttons it had no way to decline.

                              The gap

                              PageComponentSchema has no readonly / disabled, and that is a deliberate boundary — ruled 2026-08-12, "editability lives on fields", with EDITABILITY_BOUNDARY_KEYS redirecting an author who writes one. The prescription is right for a field.

                              It does not reach a related list's CRUD affordances, because those are not fields. RelatedRecordActionsBridge resolves them from the child object:

                              constrawAff=resolveEffectiveCrudAffordances(childDef,getObjectApiOperations(objectName));constobjectCanCreate=rawAff.create&&can(objectName,'create');

                              — the child's userActions bucket, intersected with API operations and the principal's grant. Nothing on the page participates. RecordRelatedListProps can decline the opt-in Add-existing picker (add) and row actions, but "+ New", row edit and row delete arrive from the host regardless.

                              So for a child object that any user may create — here duly_task, where every position holds allowCreate because people do create their own tasks elsewhere in the app — a page whose entire premise is "the manager enters nothing" is handed a create affordance on every task list on it.

                              The only lever available is object-level (duly_task.userActions.create), which would close creation everywhere — including the screens where it is correct. That is not a workaround, it is a different and wrong change.

                              Why it is worth a key rather than a doc note

                              The affordance is not merely cosmetic on a page like this: a manager pressing "+ New" on someone else's task list creates work for that person from a screen documented as read-only, and the write is legal server-side. The page is the only layer that knows this surface is a read surface — the child object is used correctly elsewhere, and the principal's grant is correct too.

                              Suggested shape

                              A per-component switch on record:related_listreadonly: true, or affordances: 'none' — consumed where the bridge's handlers are wired in RecordRelatedListBody, narrowing only (never re-opening something the bucket/API/grant already closed, matching the posture createPredicates already takes). A page-level readonly: true that defaults every component would be even better for this use case, but the per-component key is the smaller change and composes.

                              Related but distinct, both closed: #4646 (related-list "+ New" not consuming userActions.create predicates) and #5153 (the object-list toolbar's half). Those made the object's verdict reach the button. This is about the page having no verdict to give.

                              🤖 Generated with Claude Code

                              https://claude.ai/code/session_01SqkTcrxUFci7nqXdbBSe2p

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