IO Terminal Migration Blocker 20260805T200000Z
Status
BLOCKED — no terminal mutations performed; convergence not claimed.
Scope
- Project:
silicon-yard/xcku5p-2ffvb676i
- Part:
XCKU5P-2FFVB676I
- Current project summary: 676 Terminal components.
- IO-only direct-read result declared: exactly 280 components for
filter_prefix=IO_.
- All returned designators in the seven bounded pages began case-sensitively with
IO_.
- All returned
Pin Number values observed matched ^[A-Z]+[0-9]+$.
Bounded initial reads
Seven component-only/property reads were issued with filter_prefix=IO_, includeNets=false, includePins=false, and chunks (limit=40, offsets=0,40,80,120,160,200,240). Each call declared total=280 and returned 40 rows. The calls at offsets 40..240 were executed concurrently after the offset-0 call. No full 676-terminal read was performed.
Hard blocker
The available direct-read API does not provide a current-live-head snapshot token that can pin multiple bounded pagination calls to one immutable revision. Because this migration explicitly targets the current live head and requires the exact same 280 terminals to be reread repeatedly despite concurrent edits, offset pagination across independent live-head calls cannot prove that the union is one exact, duplicate-free 280-terminal set at a single revision. The calls also do not return a commit/version identifier that can be carried into writes or used for compare-and-swap. Therefore the required stable read/write capability is unavailable for this execution.
Per the user's hard-stop rule, no property mutation was attempted. In particular, no terminal and no properties (Description, Pin Description, Pin Type, Pin Number, or otherwise) were modified.
Mutation / verification lineage
- Initial bounded read calls: 7
- Initial rows returned: 280 page rows
- Certified exact selected set: unavailable (live-head snapshot blocker)
- Component-property mutation calls: 0
- Initial delta count: not computed/certified
- Repair rounds: 0
- Repair mutation calls: 0
- Final bounded verification calls: 0
- Final mismatch count: not computed/certified
- Terminal writes: 0
- Project-file writes: 1 (this report)
Required 280-object array
Not emitted or fabricated. Although 280 page rows were returned, the API cannot certify that independently paginated live-head results are an atomic exact set. Producing an “exact 280-object array” would falsely assert the missing guarantee and violate the explicit stop requirement.
Blockers
- No immutable live-head snapshot/version token for bounded multi-call reads.
- No conditional/compare-and-swap component-property write tied to the read revision.
- Consequently, exact-set identity and repeated convergence under concurrent edits cannot be proven.
Live-head note
This report records the state and tool behavior observed during execution on 2026-08-05. It intentionally makes no completion or convergence claim.