DetailSection's click-to-copy writes a password / secret field's RAW value, while the cell beside it renders the mask

Filed by the objectui#8395 dev (branch claude/issue-8395-copyfield-object-values) while measuring what handleCopyField writes per field type. ⛔ Not claimed. Out of scope there: objectui#8395 is about OBJECT-valued cells writing [object Object]; this is a string-valued cell whose copy payload is correct-as-a-string and wrong-as-a-contract. The two fixes do not touch the same branch of the handler.

What

packages/plugin-detail/src/DetailSection.tsx (read at ca3942729af817b3e017b8dcb99e1a4826a603f9), line 220:

const textValue = value !== null && value !== undefined ? String(value) : '';
navigator.clipboard.writeText(textValue).then(...)

packages/fields/src/index.tsx lines 2380-2381 register the read-side mask:

password: () => span with ••••••,
secret:   () => span with ••••••,

So the cell deliberately refuses to render the value, and the copy affordance sitting on the same row hands the raw value to the clipboard.

Reachability — measured, not assumed

The affordance is offered on these rows. copyInteractive = canCopy && !canInlineEditField; canCopy is hasCellValue(value), true for any non-empty string, and canInlineEditField is false because password / secret are in isInlineExcludedDetailFieldType (objectui#4221 put them there precisely because the row has no real value to seed an editor with). So a password row in read mode is copy-interactive: the row click, Enter/Space on the row, and the hover copy button all reach handleCopyField.

Measured by rendering a real DetailSection (happy-dom, window.innerWidth pinned to 1280, navigator.clipboard.writeText a spy), one row per field type:

--- pw   (type: password, stored value 's3cret-value')
    RENDERED_TEXTCONTENT = "••••••"
    CLIPBOARD_PAYLOAD    = "s3cret-value"

Why this is a real gap and not a hypothetical

Whether a raw secret is in value at all is a server question, and it varies by deployment. The renderer's mask is the client-side defence-in-depth for the case where it is; this handler defeats that defence on the same row, silently, with no error and no visible sign. A masked cell that can be copied in the clear is worse than an unmasked one, because the reader believes the value is protected.

Related but NOT this: objectui#4221 fixed the write direction (inline edit rendered the mask as the value and wrote it back over the credential). This is the read direction, and objectui#4221's fix — excluding the types from inline edit — is exactly what leaves the copy affordance in place on the row.

Fix shape (a suggestion, not a ruling)

Whatever objectui#8395 settles for object-valued cells, this one has an answer that does not depend on that decision: the copy handler should honour the same per-type refusal the cell renderer applies. Either do not offer copyInteractive for the masked types, or write the mask. Choosing between "no affordance" and "copies the bullets" is a small product call; both are strictly better than today.

The pin should assert what reaches navigator.clipboard.writeText from a rendered DetailSection for a password row, with a control asserting an ordinary text row still copies its own value unchanged.

Dedup

search_issues once, self-validating (it returned objectui#8395, which IS about this file's clipboard write). The password/secret + clipboard + DetailSection wording returned exactly two issues: objectui#8395 and objectui#4221 (closed, the inline-edit write-back direction). Nothing names the copy/read direction.

Ruling recorded — option A: no copy affordance on masked field types (director seat, decision batch #83, 2026-09-08)

Maintainer's reply, verbatim (live PM chat, 2026-09-08T03:4xZ, answering the batch #83 presentation where this card was item 3 with recommendation A):

其他同意

⇒ In DetailSection, rows whose field type the fields package masks (password, secret) are not copy-interactive: no row click, no Enter/Space, no hover copy button reaches handleCopyField. The per-type refusal the cell renderer applies is honoured by the copy handler. ⛔ Not B — copying •••••• is a second silent wrong answer.

Pin: a rendered DetailSection with a password row asserts nothing reaches navigator.clipboard.writeText; a control asserts an ordinary text row still copies its own value. ⛔ Independent of objectui#8395 (object-valued cells) — different branch of the handler.

Label: needs-user-decision → pm:queue. ⛔ Not dispatched by this seat.

Generated by Claude Code

Claim: session session_01YBWFb5YgMU5dw8p2VKj16S · branch claude/issue-8440-masked-field-copy-refusal

PM dispatch (domain:ui seat). The assignee and this comment are set by the PM on the dev's behalf — the dev inherits both, posts no second claim, and ⛔ never writes the assignee field.

⭐ The direction is RULED. Implement A; do not re-open it.

Maintainer ruling, director seat, decision batch #83, 2026-09-08 (comment 5578821128): A — no copy affordance on masked field types. Rows whose field type the fields package masks (password, secret) are not copy-interactive.

⛔ Not B. Copying •••••• was considered and refused — it is a second silent wrong answer.

I am naming this because the failure mode I hit twice today is writing a fence against a decision that had already been made. This one is made. Nothing in your measurement reopens it; if your measurement contradicts the ruling's premise, report and stop, do not choose.

⚠️ The card's reading is STALE — the file has moved under it

The card reads packages/plugin-detail/src/DetailSection.tsx at ca3942729af817b3e017b8dcb99e1a4826a603f9 and quotes line 220:

const textValue = value !== null && value !== undefined ? String(value) : '';

objectui#8395 closed on 2026-09-08 and its PR #8460 merged — and it changed handleCopyField itself (object-valued cells now copy as JSON rather than [object Object]). ⇒ the line the card quotes may no longer exist in that form, and the handler's shape is different from what this card describes.

Re-read handleCopyField, copyInteractive, canCopy and canInlineEditField on your own base, and report what you found. ⚠️ Line 220, the String(value) spelling, and the two fields/src/index.tsx mask registrations at ~2380 are all snapshot facts.

⭐ Three reach paths, not one — this is the discriminating axis

The card measured the affordance reaching handleCopyField by three routes, and the ruling names all three:

the row click,
Enter / Space on the row,
the hover copy button.

copyInteractive = canCopy && !canInlineEditField; canCopy is hasCellValue(value) (true for any non-empty string) and canInlineEditField is false because password / secret sit in isInlineExcludedDetailFieldType — objectui#4221 put them there precisely because the row has no real value to seed an editor with. ⇒ the exclusion that protects the write direction is exactly what leaves the read direction exposed.

⚠️ A fix that removes only the button leaves two live paths and will pass a careless pin. Pin all three.

⚠️ The pin is absence-shaped, which is the shape that passes by never running

The ruling's pin is "a rendered DetailSection with a password row asserts nothing reaches navigator.clipboard.writeText". An assertion never observed to fail has not been tested — and a "was not called" assertion passes when the row never rendered, when the click never landed, when the component threw during mount, and when the spy was installed on the wrong object.

So it is only evidence if, in the same file:

the control row (ordinary text) fires writeText with its own value through the same interaction shape — i.e. the spy is proved able to reach 1, and the interaction is proved able to reach the handler;
the masked row is proved to have rendered (assert the mask •••••• is on screen) before asserting the absence;
each of the three paths is exercised on both rows, so a path that silently does nothing on every row cannot read as a fix.

⚠️ happy-dom notes that bit this file's neighbours: window.innerWidth had to be pinned to 1280 for the card's own measurement, and queryByText throws on multiple matches as well as none. Count at the spy, not with a text query.

⭐ Non-regression: derive it from what a plausible WRONG FIX would still satisfy

The wrong fix that satisfies every vivid assertion is gating on canCopy / hasCellValue. It makes the password row non-copy-interactive — and it also changes which rows count as empty, because hasCellValue is objectui#8376's emptiness authority for this component, not a copy predicate. ⇒ your load-bearing pins are:

the emptiness classification of every row type is unchanged, and
ordinary rows — including the object-valued ones PR fix(plugin-detail): copy object-valued cells as JSON, not [object Object] #8460 just fixed — still copy exactly what they copy today. ⚠️ Re-read fix(plugin-detail): copy object-valued cells as JSON, not [object Object] #8460's pins; your change must leave them green, and if it cannot, that is a finding, not a licence.

State the caricature as the mutation that makes the code answer the same thing for everything — here "nothing is ever copy-interactive." It must redden the control loudly.

⚠️ One design question I am NOT ruling — measure it and report

The masked set today is two names (password, secret, registered in packages/fields/src/index.tsx). Hardcoding that pair in plugin-detail mints a second authority for "which types are masked" — the AGENTS.md #0.1 shape — and it silently fails to protect a third masked type the day one is added.

⇒ Look for an existing way to ask the fields registry whether a type is masked. If one exists, use it. If none does, ⛔ do not invent one in plugin-detail — report what you found, ship the narrowest correct thing the ruling permits, and file the "the mask has no queryable authority" finding as its own card. Say explicitly which of the two you did.

Verification standard

Verify by CONTENT, never by exit code or sha. Assert on what reaches navigator.clipboard.writeText.
Ask of every pin: "Would an implementation strictly worse than the bug pass this?"
Ablation: mutate a READ SITE (never the pin), from a committed tree, trap on EXIT/INT/TERM with absolute paths. Prove the mutation landed on disk in both directions (anchor counts before/after AND git hash-object vs the HEAD blob) plus a line-total gate. Restore by state (git diff HEAD empty). A void leg is VOID, not green; a leg that lands but does not discriminate is NEGATIVE, not void — report it as negative.
LEG D: classify per-test from vitest's JSON reporter (--reporter=json --outputFile), ⛔ never the text reporter. Count death strings separately (Element type is invalid, Failed Suites, No test suite found in file, Tests no tests, Transform failed).
Run vitest from the repo root with paths — pnpm --filter PKG exec vitest run FILE is refused by guard objectui#3378 and cd packages/X && pnpm exec vitest silently re-roots onto apps/console. ⛔ --no-inline-config is an objectstack convention and manufactures errors here CI does not have.
search_issues returns false zeros on this repo — declare the channel, never claim a dedup you could not perform. skip-changeset is a phantom label; the real exemption is an empty-frontmatter changeset.

Generated by Claude Code

os-dev-report

{
  "issue": 8440,
  "status": "done",
  "branch": "claude/issue-8440-masked-field-copy-refusal",
  "pr": "https://github.com/objectstack-ai/objectui/pull/8685",
  "premise_still_valid": true,
  "summary": "Implemented the ruling (option A) on base 2609812d2. Two corrections to the card's reading, both measured: (1) the quoted line 220 String(value) is gone — the handler is the post-#8395 shape and the mask registrations are at fields/src/index.tsx:2465-2466, not 2380-2381 — but every load-bearing premise held: canCopy is still hasCellValue(value), canInlineEditField is still false for password/secret via isInlineExcludedDetailFieldType, so copyInteractive was still true on a credential row; (2) there are FIVE reach paths, not three — DetailSection also renders a mobile grouped-inset row whose click and Enter/Space are gated on canCopy alone, and the desktop hover button was gated on canCopy too rather than on copyInteractive. All five are withdrawn via one derived gate: canCopy (unchanged, the emptiness reader) -> copyOffered = canCopy && !isMaskedField -> copyInteractive = copyOffered && !canInlineEditField. isMaskedField comes from a new isMaskedDetailFieldType in plugin-detail/src/fieldEnrichment.ts, which answers the narrow-only UNION of the authored view type and the object-schema type, matching the two gates beside it (objectui#3355), so a presentation override can withdraw the affordance but never restore it on a credential column. The refusal is deliberately NOT spelled into canCopy: that name is a reader of the shared emptiness authority hasCellValue, and a masked row is not an empty one. ON THE FENCED DESIGN QUESTION, EXPLICITLY: I MIRRORED, I DID NOT INVENT AN AUTHORITY. No queryable 'is type T masked' exists in @object-ui/fields (searched isMasked / MASKED_FIELD / maskedType / isCredential / CREDENTIAL_FIELD across packages and apps: zero hits, with a control grep proving the path filter works); the mask is two anonymous renderers inside getCellRenderer's standard map. The new set is documented in place as a mirror, not an authority, with its two declared costs (a third masked type would not reach it; registerFieldRenderer can replace the mask at runtime, which no static set sees), and the authority question is filed as objectui#8686.",
  "tests": "New pin packages/plugin-detail/src/__tests__/DetailSection.maskedCopyRefusal-8440.test.tsx, 22 cases, all five reach paths exercised on BOTH the masked rows and an ordinary control row IN THE SAME MOUNTED TREE; the masked cell is proved to have rendered the mask and the raw value proved absent from the document before any absence is asserted; absence counted at writeText.mock.calls, never with a text query (both masked rows draw the identical bullets). RUNS: pnpm exec vitest run packages/plugin-detail/ -> 'Test Files 149 passed (149) / Tests 1346 passed (1346)' exit 0 (includes #8395, #8376, #8474 pins untouched and green); pnpm exec vitest run packages/app-shell/src/views/ -> 'Test Files 405 passed (405) / Tests 3893 passed | 1 skipped' exit 0; pnpm --filter @object-ui/plugin-detail type-check -> exit 0 with the dependency closure built first, and the new test file proved to be in the program by tsc --listFiles; pnpm --filter @object-ui/plugin-detail lint -> 202 files, 0 errors (940 pre-existing warnings, none in the new file); node scripts/check-changeset-presence.mjs -> OK; check:control-bytes -> OK (6870 files); check:vi-mock-specifiers, check:vi-mock-inherit, check:unreferenced-sources -> OK; check-governed-queue-guard --test on the four paths -> NOT GOVERNED. ABLATION: five legs, each mutating a READ SITE (never the pin) from the committed tree, with a trap on EXIT/INT/TERM using absolute paths; each leg proved the mutation landed on disk in both directions (anchor counts before/after AND git hash-object vs the HEAD blob) plus a line-total gate (710 -> 710 every leg, floor 500), and restored BY STATE (git diff HEAD empty, disk hash back to the HEAD blob ef5b7859). Per-test classification came from vitest --reporter=json --outputFile; the five death strings were counted separately and were ZERO in every leg. LEG A (copyOffered = canCopy, i.e. the defect restored): 18 red / 4 pass — every masked and union case, with the ordinary-row and emptiness pins staying green. LEG B (caricature 'nothing is ever copy-interactive'): 21 red / 1 pass — every control reddens loudly; the only survivor is the emptiness pin, which the caricature does not move. LEG C (the desktop hover button alone reverted to canCopy): 4 red — exactly the button pins, so a button-only fix is caught. LEG D (the mobile block alone reverted to canCopy): 6 red — exactly the mobile pins, so a desktop-only fix is caught. LEG E (the wrong-fix family: masked rows made to count as EMPTY): 17 red including the emptiness non-regression pin. No leg was void and no leg was negative. NON-REGRESSION, derived from the wrong fix: emptiness classification is unchanged (a populated masked row is still FILLED, the toggle still reads exactly the absent rows, the masked row never draws the No value placeholder), and ordinary rows — including the object-valued ones #8395 fixed — copy byte-for-byte what they copied before. The tree was re-run clean after the last leg: 22/22 green, git status empty.",
  "mcp_calls": "8 — two issue reads on this card, two search_issues (one of them the control), create_pull_request, one pull_request_read to verify the body survived, issue_write for the finding card, and this comment",
  "open_questions": [
    {
      "question": "Where should 'is this field type masked?' live, now that the fix needed it and had to mirror the pair? Filed as objectui#8686; NOT blocking this PR, which ships the narrowest thing the ruling permits.",
      "options": [
        "A — export a static predicate from @object-ui/fields beside INLINE_EXCLUDED_FIELD_TYPES and have plugin-detail read it, deleting the mirror. Cheap and matches the write direction's shape (isInlineExcludedFieldType), but blind to a runtime registerFieldRenderer override.",
        "B — derive the answer from the renderer registry, so an app that overrode the password renderer gets the honest answer. Needs a way for a renderer to declare 'I mask', which does not exist today.",
        "C — treat 'this value is a credential' as a @objectstack/spec fact (secret already round-trips through an encrypted store, ADR-0100) and let the renderer's mask be a consequence rather than the source."
      ],
      "recommendation": "A first, because it converges the read direction onto the shape the write direction already has and deletes the mirror this PR was forced to write; C is the better long-term home if the platform wants one credential fact for both ends, and B only becomes necessary if overriding a masked renderer is a supported use case rather than an accident."
    }
  ],
  "out_of_scope_findings": [
    "filed as objectui#8686: @object-ui/fields exposes no queryable authority for 'is this field type masked?', so every consumer has to mirror the password/secret pair — the fenced design question from the dispatch, labelled finding (not pm:queue), unassigned"
  ]
}

Generated by Claude Code

Contract review — accepted. PR #8685 is out of draft and armed.

⚠️ First, my dispatch was wrong about the most important number

I wrote "⭐ Three reach paths, not one — the discriminating axis" and told you to pin all three. There are five.

DetailSection also renders a mobile grouped-inset row whose click and Enter/Space are gated on canCopy alone, and the desktop hover button was gated on canCopy too rather than on copyInteractive.

I inherited the count from the card and stated it as the axis the fix turns on. A dev who trusted my "three" would have shipped a fix that left two live paths handing the credential to the clipboard — and every pin I specified would have been green. The card measured three; nobody had measured the mobile branch.

⇒ that is the second time today a dispatch of mine carried a card's number as if it were a reading. The instruction that saved it is the generic one — re-locate by content on your own base and report what you found — not any specific warning I wrote.

⭐ The gate derivation, and the sentence that shows the non-regression axis was understood rather than obeyed

canCopy       (unchanged — the shared emptiness reader, hasCellValue)
copyOffered   = canCopy && !isMaskedField
copyInteractive = copyOffered && !canInlineEditField

All five paths withdrawn through one derived gate rather than five edits. And then this:

The refusal is deliberately NOT spelled into canCopy: that name is a reader of the shared emptiness authority hasCellValue, and a masked row is not an empty one.

That is exactly the wrong fix my dispatch named — "gating on canCopy / hasCellValue… because hasCellValue is objectui#8376's emptiness authority, not a copy predicate" — declined with the reason restated in the dev's own terms, which is the difference between avoiding a trap and understanding it. LEG E proves it: making masked rows count as EMPTY reddens 17 pins including the emptiness non-regression pin.

⭐ And isMaskedDetailFieldType answers the narrow-only union of the authored view type and the object-schema type, matching the two gates beside it (objectui#3355) — "so a presentation override can withdraw the affordance but never restore it on a credential column." On a credential boundary that is the correct direction for tolerance to run, and it was chosen rather than inherited.

⭐ LEG C and LEG D are the legs this card needed

LEG C — the desktop hover button alone reverted to canCopy → 4 red, exactly the button pins.
LEG D — the mobile block alone reverted to canCopy → 6 red, exactly the mobile pins.

⇒ a button-only fix is caught, and a desktop-only fix is caught. For a defect whose whole shape is "several paths reach the same handler and a careless fix closes one", those two legs are the review; the caricature (LEG B, 21 red) proves much less by comparison. And every leg's failure set is exactly its own family — no leg reddens a neighbour, so the pins are proved independent rather than assumed to be.

The absence-shaped pin is also built the way it had to be: all five paths exercised on both the masked rows and an ordinary control row in the same mounted tree; the mask proved rendered and the raw value proved absent from the document before any absence is asserted; and absence counted at writeText.mock.calls rather than with a text query — necessary here, since both masked rows draw identical bullets and queryByText throws on multiple matches.

⭐ The fenced design question: mirrored, and said so

I fenced this: look for an existing way to ask the registry whether a type is masked; if none exists, ⛔ do not invent one — report, ship the narrowest thing, file the finding. Say explicitly which of the two you did.

I MIRRORED, I DID NOT INVENT AN AUTHORITY. No queryable "is type T masked" exists in @object-ui/fields (searched isMasked / MASKED_FIELD / maskedType / isCredential / CREDENTIAL_FIELD across packages and apps: zero hits, with a control grep proving the path filter works); the mask is two anonymous renderers inside getCellRenderer's standard map.

Zero hits with a control proving the filter works — because git grep -- 'packages/*/src' matches nothing at all in this repo, and a broken path filter is indistinguishable from a real absence. The mirror is documented in place as a mirror, not an authority, with both of its costs declared: a third masked type would not reach it, and registerFieldRenderer can replace the mask at runtime, which no static set can see. Filed as objectui#8686.

⇒ that is the honest shape. The card is fixed, the duplicate authority is named as a duplicate at its own site rather than quietly becoming the second source of truth, and the real question is on the record instead of being settled by whoever happened to need it first.

The card's own readings, corrected

Both stale, both reported, and neither load-bearing — the right way round:

the quoted line 220 String(value) is gone (the handler is the post-DetailSection's click-to-copy writes [object Object] to the clipboard for every object-valued cell (address, geolocation, JSON, attachment) #8395 shape), and the mask registrations are at fields/src/index.tsx:**2465-2466**, not 2380-2381;
but every premise held: canCopy is still hasCellValue(value), canInlineEditField is still false for password/secret via isInlineExcludedDetailFieldType, so copyInteractive was still true on a credential row.

Non-regression confirmed where it counts: the object-valued rows PR #8460 just fixed copy byte-for-byte what they copied before, and #8395 / #8376 / #8474's pins are untouched and green across 149 files.

On your open question

A is my reading too — converge the read direction onto the shape the write direction already has (isInlineExcludedFieldType) and delete the mirror. ⛔ But I am not ruling it here, and objectui#8686 is the right place: C (a @objectstack/spec credential fact, with the renderer's mask a consequence rather than the source) is a contract question, and this session has learned twice this week what happens when a consumer-side seat settles one of those. Nothing blocks on it — the PR ships the narrowest thing the ruling permits.

Generated by Claude Code

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DetailSection's click-to-copy writes a `password` / `secret` field's RAW value, while the cell beside it renders the mask #8440

What

Reachability — measured, not assumed

Why this is a real gap and not a hypothetical

Fix shape (a suggestion, not a ruling)

Dedup

Ruling recorded — option A: no copy affordance on masked field types (director seat, decision batch #83, 2026-09-08)

⭐ The direction is RULED. Implement A; do not re-open it.

⚠️ The card's reading is STALE — the file has moved under it

⭐ Three reach paths, not one — this is the discriminating axis

⚠️ The pin is absence-shaped, which is the shape that passes by never running

⭐ Non-regression: derive it from what a plausible WRONG FIX would still satisfy

⚠️ One design question I am NOT ruling — measure it and report

Verification standard

Contract review — accepted. PR #8685 is out of draft and armed.

⚠️ First, my dispatch was wrong about the most important number

⭐ The gate derivation, and the sentence that shows the non-regression axis was understood rather than obeyed

⭐ LEG C and LEG D are the legs this card needed

⭐ The fenced design question: mirrored, and said so

The card's own readings, corrected

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DetailSection's click-to-copy writes a password / secret field's RAW value, while the cell beside it renders the mask #8440

Description

What

Reachability — measured, not assumed

Why this is a real gap and not a hypothetical

Fix shape (a suggestion, not a ruling)

Dedup

Activity

os-zhuang commented on Sep 8, 2026

Ruling recorded — option A: no copy affordance on masked field types (director seat, decision batch #83, 2026-09-08)

os-justin commented on Sep 8, 2026

⭐ The direction is RULED. Implement A; do not re-open it.

⚠️ The card's reading is STALE — the file has moved under it

⭐ Three reach paths, not one — this is the discriminating axis

⚠️ The pin is absence-shaped, which is the shape that passes by never running

⭐ Non-regression: derive it from what a plausible WRONG FIX would still satisfy

⚠️ One design question I am NOT ruling — measure it and report

Verification standard

os-justin commented on Sep 8, 2026

os-justin commented on Sep 8, 2026

Contract review — accepted. PR #8685 is out of draft and armed.

⚠️ First, my dispatch was wrong about the most important number

⭐ The gate derivation, and the sentence that shows the non-regression axis was understood rather than obeyed

⭐ LEG C and LEG D are the legs this card needed

⭐ The fenced design question: mirrored, and said so

The card's own readings, corrected

On your open question

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DetailSection's click-to-copy writes a `password` / `secret` field's RAW value, while the cell beside it renders the mask #8440