Make matrix page full width

[rgbkrk]

Summary

Makes the /matrix page use full viewport width for a cleaner table display.

Changes

• Remove max-width constraint, margins, and padding from main element
• Change table border from rounded-lg border to border-y for edge-to-edge display without rounded corners

PR submitted by @rgbkrk's agent, Quill

[github-actions]

Kernel Conformance Matrix

Kernel	Protocol	Tier 1	Tier 2	Tier 3	Tier 4	Total
almond	5.4	6/10	4/7	1/4	1/5	12/26
ark	5.4	10/10	5/7	3/4	5/5	23/26
async-kernel	5.5	10/10	7/7	2/4	5/5	24/26
deno	5.3	9/10	6/7	4/4	4/5	23/26
evcxr	5.3	10/10	3/7	2/4	3/5	18/26
gonb	5.4	6/10	1/7	1/4	3/5	11/26
ijulia	5.4	10/10	6/7	3/4	5/5	24/26
ipykernel	5.3	10/10	7/7	4/4	5/5	26/26
ocaml-jupyter	5.2	9/10	4/7	2/4	1/5	16/26
xeus-cling	5.3	9/10	4/7	0/4	0/5	13/26
xeus-cpp	5.5	4/10	0/7	0/4	0/5	4/26
xeus-haskell	5.3	6/10	4/7	1/4	3/5	14/26
xeus-lua	5.5	8/10	4/7	1/4	4/5	17/26
xeus-octave	unknown	0/1	0/0	0/0	0/0	0/1
xeus-python	5.5	9/10	5/7	4/4	4/5	22/26
xeus-r	5.5	9/10	5/7	3/4	4/5	21/26
xeus-sql	5.5	6/10	1/7	0/4	1/5	8/26
xeus-sqlite	5.5	6/10	4/7	0/4	3/5	13/26

---

almond (scala) - 14 failures, 0 skipped

Language: scala | Protocol: 5.4

Failures

Test	Message Type	Likely Source	Reason
execute_reply_ok	execute_request	harness_error	Protocol error: Error deserializing content for msg_type execute_reply: invalid type: string "\u{1b}[36mx\u{1b}[39m: \u{1b}[32mInt\u{1b}[39m = \u{1b}[32m1\u{1b}[39m", expected internally tagged enum ExpressionResult
status_busy_idle_lifecycle	status	unknown	Protocol error: Error deserializing content for msg_type execute_reply: invalid type: string "\u{1b}[36mx\u{1b}[39m: \u{1b}[32mInt\u{1b}[39m = \u{1b}[32m1\u{1b}[39m", expected internally tagged enum ExpressionResult
execute_input_broadcast	execute_input	unknown	Protocol error: Error deserializing content for msg_type execute_reply: invalid type: string "\u{1b}[36mx\u{1b}[39m: \u{1b}[32mInt\u{1b}[39m = \u{1b}[32m1\u{1b}[39m", expected internally tagged enum ExpressionResult
history_request	history_request	unknown	Protocol error: Error deserializing content for msg_type history_reply: missing field history
error_handling	execute_request	unknown	Protocol error: Error deserializing content for msg_type error: missing field traceback
execute_result	execute_result	unknown	Protocol error: Error deserializing content for msg_type execute_reply: invalid type: string "\u{1b}[36mid\u{1b}[39m: \u{1b}[32mString\u{1b}[39m = \u{1b}[32m"be645009-8408-45bb-9f92-843d0d2feb77"\u{1b}[39m", expected internally tagged enum ExpressionResult
rich_execute_result	execute_result	unknown	Protocol error: Error deserializing content for msg_type execute_reply: invalid type: string "\u{1b}[36mres11\u{1b}[39m: \u{1b}[32mInt\u{1b}[39m = \u{1b}[32m2\u{1b}[39m", expected internally tagged enum ExpressionResult
stdin_input_request	input_request	harness_error	Timeout waiting for iopub idle (stdin test)
comms_lifecycle	comm_open	harness_error	Kernel unresponsive after comm: Timeout waiting for iopub idle
interrupt_request	interrupt_request	unknown	Protocol error: Error deserializing content for msg_type interrupt_reply: missing field status
execution_count_increments	execute_request	unknown	Counts didn't increment: 12 -> 0
shutdown_reply	shutdown_request	unknown	Protocol error: Error deserializing content for msg_type shutdown_reply: missing field status

ark () - 3 failures, 0 skipped

Language: R | Protocol: 5.4

Failures

Test	Message Type	Likely Source	Reason
history_request	history_request	unknown	Timeout waiting for shell reply
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply

async-kernel (async_kernel) - 1 failures, 1 skipped

Language: python | Protocol: 5.5

Failures

Test	Message Type	Likely Source	Reason
execute_result	execute_result	unknown	No execute_result on iopub

Skipped (Not Implemented)

• rich_execute_result: Expression evaluation produces execute_result with rich MIME types (HTML, images, etc.)

deno (Deno kernel) - 3 failures, 0 skipped

Language: typescript | Protocol: 5.3

Failures

Test	Message Type	Likely Source	Reason
interrupt_request	interrupt_request	unknown	Timeout waiting for control reply
shutdown_reply	shutdown_request	unknown	Timeout waiting for control reply

evcxr (evcxr_jupyter) - 5 failures, 3 skipped

Language: Rust | Protocol: 5.3

Failures

Test	Message Type	Likely Source	Reason
inspect_request	inspect_request	unknown	Timeout waiting for shell reply
history_request	history_request	unknown	Timeout waiting for shell reply
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply
interrupt_request	interrupt_request	unknown	Protocol error: Error deserializing content for msg_type interrupt_reply: missing field status

Skipped (Not Implemented)

• display_data: Kernel can produce display_data messages for rich output
• update_display_data: Kernel can update existing displays via update_display_data
• stdin_input_request: Kernel can request input from frontend via stdin channel

gonb (gonb) - 14 failures, 1 skipped

Language: go | Protocol: 5.4

Failures

Test	Message Type	Likely Source	Reason
execute_stdout	execute_request	unknown	No stdout containing 'hello'
execute_stderr	stream	unknown	No stderr containing 'error'
execute_reply_ok	execute_request	kernel_error	execute_reply status: Error
complete_request	complete_request	unknown	Timeout waiting for shell reply
inspect_request	inspect_request	unknown	Expected inspect_reply, got "complete_reply"
is_complete_complete	is_complete_request	unknown	Expected is_complete_reply, got "execute_reply"
is_complete_incomplete	is_complete_request	unknown	Expected is_complete_reply, got "inspect_reply"
history_request	history_request	unknown	Timeout waiting for shell reply
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply
execute_result	execute_result	unknown	No execute_result on iopub
stdin_input_request	input_request	unexpected_content	No input_request received on stdin channel
interrupt_request	interrupt_request	unknown	Timeout waiting for control reply
shutdown_reply	shutdown_request	unknown	Timeout waiting for control reply

Skipped (Not Implemented)

• rich_execute_result: Expression evaluation produces execute_result with rich MIME types (HTML, images, etc.)

ijulia (ijulia) - 1 failures, 1 skipped

Language: julia | Protocol: 5.4

Failures

Test	Message Type	Likely Source	Reason
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply

Skipped (Not Implemented)

• update_display_data: Kernel can update existing displays via update_display_data

ocaml-jupyter (ocaml-jupyter) - 8 failures, 2 skipped

Language: OCaml | Protocol: 5.2

Failures

Test	Message Type	Likely Source	Reason
history_request	history_request	unknown	Protocol error: Error deserializing content for msg_type history_reply: missing field status
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply
stdin_input_request	input_request	unexpected_content	No input_request received on stdin channel
interrupt_request	interrupt_request	unknown	Timeout waiting for control reply
execution_count_increments	execute_request	unknown	Timeout waiting for iopub idle
parent_header_correlation	parent_header	unknown	Timeout waiting for iopub idle
shutdown_reply	shutdown_request	unknown	Timeout waiting for control reply

Skipped (Not Implemented)

• update_display_data: Kernel can update existing displays via update_display_data
• rich_execute_result: Expression evaluation produces execute_result with rich MIME types (HTML, images, etc.)

xeus-cling (xeus-cling) - 11 failures, 2 skipped

Language: c++ | Protocol: 5.3

Failures

Test	Message Type	Likely Source	Reason
inspect_request	inspect_request	unknown	inspect_reply status: Error
history_request	history_request	unknown	Protocol error: Error deserializing content for msg_type history_reply: data did not match any variant of untagged enum HistoryEntry
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply
display_data	display_data	unknown	Timeout waiting for iopub idle
update_display_data	update_display_data	unknown	Timeout waiting for iopub idle
execute_result	execute_result	unknown	Protocol error: Codec Error: Broken pipe (os error 32)
comms_lifecycle	comm_open	harness_error	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
interrupt_request	interrupt_request	unknown	Timeout waiting for control reply
execution_count_increments	execute_request	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
parent_header_correlation	parent_header	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
shutdown_reply	shutdown_request	unknown	Protocol error: Codec Error: Broken pipe (os error 32)

Skipped (Not Implemented)

• rich_execute_result: Expression evaluation produces execute_result with rich MIME types (HTML, images, etc.)
• stdin_input_request: Kernel can request input from frontend via stdin channel

xeus-cpp (xeus-cpp) - 20 failures, 2 skipped

Language: C++ | Protocol: 5.5

Failures

Test	Message Type	Likely Source	Reason
execute_stdout	execute_request	unknown	Timeout waiting for iopub idle
execute_stderr	stream	unknown	Timeout waiting for iopub idle
execute_reply_ok	execute_request	harness_error	Protocol error: Codec Error: Broken pipe (os error 32)
status_busy_idle_lifecycle	status	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
execute_input_broadcast	execute_input	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
complete_request	complete_request	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
inspect_request	inspect_request	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
is_complete_complete	is_complete_request	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
is_complete_incomplete	is_complete_request	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
history_request	history_request	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
comm_info_request	comm_info_request	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
error_handling	execute_request	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
display_data	display_data	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
update_display_data	update_display_data	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
execute_result	execute_result	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
comms_lifecycle	comm_open	harness_error	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
interrupt_request	interrupt_request	unknown	Timeout waiting for control reply
execution_count_increments	execute_request	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
parent_header_correlation	parent_header	unknown	Protocol error: Failed to deliver message (6 frames) cause of Not connected to peers. Unable to send messages
shutdown_reply	shutdown_request	unknown	Protocol error: Codec Error: Broken pipe (os error 32)

Skipped (Not Implemented)

• rich_execute_result: Expression evaluation produces execute_result with rich MIME types (HTML, images, etc.)
• stdin_input_request: Kernel can request input from frontend via stdin channel

xeus-haskell (xhaskell) - 8 failures, 4 skipped

Language: haskell | Protocol: 5.3

Failures

Test	Message Type	Likely Source	Reason
execute_stdout	execute_request	unknown	No stdout containing 'hello'
execute_stderr	stream	unknown	No stderr containing 'error'
execute_reply_ok	execute_request	kernel_error	execute_reply status: Error
history_request	history_request	unknown	Protocol error: Error deserializing content for msg_type history_reply: data did not match any variant of untagged enum HistoryEntry
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply
interrupt_request	interrupt_request	unknown	Protocol error: Error deserializing content for msg_type interrupt_reply: invalid type: null, expected struct InterruptReply
shutdown_reply	shutdown_request	unknown	Protocol error: Error deserializing content for msg_type shutdown_reply: invalid type: null, expected struct ShutdownReply

Skipped (Not Implemented)

• display_data: Kernel can produce display_data messages for rich output
• update_display_data: Kernel can update existing displays via update_display_data
• rich_execute_result: Expression evaluation produces execute_result with rich MIME types (HTML, images, etc.)
• stdin_input_request: Kernel can request input from frontend via stdin channel

xeus-lua (xlua) - 7 failures, 2 skipped

Language: lua | Protocol: 5.5

Failures

Test	Message Type	Likely Source	Reason
execute_stderr	stream	unknown	No stderr containing 'error'
history_request	history_request	unknown	Protocol error: Error deserializing content for msg_type history_reply: data did not match any variant of untagged enum HistoryEntry
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply
execute_result	execute_result	unknown	No execute_result on iopub
interrupt_request	interrupt_request	unknown	Protocol error: Error deserializing content for msg_type interrupt_reply: invalid type: null, expected struct InterruptReply
shutdown_reply	shutdown_request	unknown	Protocol error: Error deserializing content for msg_type shutdown_reply: invalid type: null, expected struct ShutdownReply

Skipped (Not Implemented)

• update_display_data: Kernel can update existing displays via update_display_data
• rich_execute_result: Expression evaluation produces execute_result with rich MIME types (HTML, images, etc.)

xeus-octave (unknown) - 1 failures, 0 skipped

Language: Octave | Protocol: unknown

Failures

Test	Message Type	Likely Source	Reason
kernel_startup	kernel_info_request	protocol_error	Timeout waiting for kernel_info_reply

xeus-python (xeus-python) - 4 failures, 0 skipped

Language: python | Protocol: 5.5

Failures

Test	Message Type	Likely Source	Reason
history_request	history_request	unknown	Protocol error: Error deserializing content for msg_type history_reply: data did not match any variant of untagged enum HistoryEntry
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply
interrupt_request	interrupt_request	unknown	Protocol error: Error deserializing content for msg_type interrupt_reply: invalid type: null, expected struct InterruptReply
shutdown_reply	shutdown_request	unknown	Protocol error: Error deserializing content for msg_type shutdown_reply: invalid type: null, expected struct ShutdownReply

xeus-r (xr) - 5 failures, 0 skipped

Language: R | Protocol: 5.5

Failures

Test	Message Type	Likely Source	Reason
history_request	history_request	unknown	Protocol error: Error deserializing content for msg_type history_reply: data did not match any variant of untagged enum HistoryEntry
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply
interrupt_request	interrupt_request	unknown	Protocol error: Error deserializing content for msg_type interrupt_reply: invalid type: null, expected struct InterruptReply
shutdown_reply	shutdown_request	unknown	Protocol error: Error deserializing content for msg_type shutdown_reply: invalid type: null, expected struct ShutdownReply

xeus-sql (xsql) - 15 failures, 3 skipped

Language: mysql | Protocol: 5.5

Failures

Test	Message Type	Likely Source	Reason
execute_stdout	execute_request	unknown	No stdout containing 'hello'
execute_stderr	stream	unknown	No stderr containing 'error'
execute_reply_ok	execute_request	kernel_error	execute_reply status: Error
complete_request	complete_request	unknown	Expected complete_reply, got "execute_reply"
inspect_request	inspect_request	unknown	Expected inspect_reply, got "execute_reply"
is_complete_complete	is_complete_request	unknown	Expected is_complete_reply, got "execute_reply"
is_complete_incomplete	is_complete_request	unknown	Expected is_complete_reply, got "execute_reply"
history_request	history_request	unknown	Expected history_reply, got "complete_reply"
comm_info_request	comm_info_request	unknown	Expected comm_info_reply, got "execute_reply"
execute_result	execute_result	unknown	No execute_result on iopub
stdin_input_request	input_request	unexpected_content	No input_request received on stdin channel
interrupt_request	interrupt_request	unknown	Protocol error: Error deserializing content for msg_type interrupt_reply: invalid type: null, expected struct InterruptReply
execution_count_increments	execute_request	unknown	Counts didn't increment: 8 -> 8
parent_header_correlation	parent_header	unknown	Protocol error: Error deserializing content for msg_type history_reply: data did not match any variant of untagged enum HistoryEntry
shutdown_reply	shutdown_request	unknown	Protocol error: Error deserializing content for msg_type shutdown_reply: invalid type: null, expected struct ShutdownReply

Skipped (Not Implemented)

• display_data: Kernel can produce display_data messages for rich output
• update_display_data: Kernel can update existing displays via update_display_data
• rich_execute_result: Expression evaluation produces execute_result with rich MIME types (HTML, images, etc.)

xeus-sqlite (xsqlite) - 9 failures, 4 skipped

Language: sql | Protocol: 5.5

Failures

Test	Message Type	Likely Source	Reason
execute_stdout	execute_request	unknown	No stdout containing 'hello'
execute_stderr	stream	unknown	No stderr containing 'error'
execute_reply_ok	execute_request	kernel_error	execute_reply status: Error
history_request	history_request	unknown	Protocol error: Error deserializing content for msg_type history_reply: data did not match any variant of untagged enum HistoryEntry
comm_info_request	comm_info_request	unknown	Timeout waiting for shell reply
execute_result	execute_result	unknown	No execute_result on iopub
interrupt_request	interrupt_request	unknown	Protocol error: Error deserializing content for msg_type interrupt_reply: invalid type: null, expected struct InterruptReply
shutdown_reply	shutdown_request	unknown	Protocol error: Error deserializing content for msg_type shutdown_reply: invalid type: null, expected struct ShutdownReply

Skipped (Not Implemented)

• display_data: Kernel can produce display_data messages for rich output
• update_display_data: Kernel can update existing displays via update_display_data
• rich_execute_result: Expression evaluation produces execute_result with rich MIME types (HTML, images, etc.)
• stdin_input_request: Kernel can request input from frontend via stdin channel

---

Test Results by Message Type

Test	Message Type	almond	ark	async-kernel	deno	evcxr	gonb	ijulia	ipykernel	ocaml-jupyter	xeus-cling	xeus-cpp	xeus-haskell	xeus-lua	xeus-octave	xeus-python	xeus-r	xeus-sql	xeus-sqlite
comm_info_request	comm_info_request	✅	❌	✅	✅	❌	❌	❌	✅	❌	❌	❌	❌	❌	-	❌	❌	❌	❌
comms_lifecycle	comm_open	❌	✅	✅	✅	✅	✅	✅	✅	✅	❌	❌	✅	✅	-	✅	✅	✅	✅
complete_request	complete_request	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅	❌	✅	✅	-	✅	✅	❌	✅
display_data	display_data	✅	✅	✅	✅	⏭️	✅	✅	✅	✅	❌	❌	⏭️	✅	-	✅	✅	⏭️	⏭️
error_handling	execute_request	❌	✅	✅	✅	✅	✅	✅	✅	✅	✅	❌	✅	✅	-	✅	✅	✅	✅
execute_input_broadcast	execute_input	❌	✅	✅	✅	✅	✅	✅	✅	✅	✅	❌	✅	✅	-	✅	✅	✅	✅
execute_reply_ok	execute_request	❌	✅	✅	✅	✅	❌	✅	✅	✅	✅	❌	❌	✅	-	✅	✅	❌	❌
execute_result	execute_result	❌	✅	❌	✅	✅	❌	✅	✅	✅	❌	❌	✅	❌	-	✅	✅	❌	❌
execute_stderr	stream	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅	❌	❌	❌	-	✅	✅	❌	❌
execute_stdout	execute_request	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅	❌	❌	✅	-	✅	✅	❌	❌
execution_count_increments	execute_request	❌	✅	✅	✅	✅	✅	✅	✅	❌	❌	❌	✅	✅	-	✅	✅	❌	✅
heartbeat_responds	heartbeat	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	-	✅	✅	✅	✅
history_request	history_request	❌	❌	✅	✅	❌	❌	✅	✅	❌	❌	❌	❌	❌	-	❌	❌	❌	❌
inspect_request	inspect_request	✅	✅	✅	✅	❌	❌	✅	✅	✅	❌	❌	✅	✅	-	✅	✅	❌	✅
interrupt_request	interrupt_request	❌	✅	✅	❌	❌	❌	✅	✅	❌	❌	❌	❌	❌	-	❌	❌	❌	❌
is_complete_complete	is_complete_request	✅	✅	✅	✅	✅	❌	✅	✅	⚠️	✅	❌	✅	✅	-	✅	✅	❌	✅
is_complete_incomplete	is_complete_request	⚠️	✅	✅	⚠️	⚠️	❌	✅	✅	✅	✅	❌	⚠️	⚠️	-	✅	✅	❌	⚠️
kernel_info_has_language_info	kernel_info_request	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	-	✅	✅	✅	✅
kernel_info_has_protocol_version	kernel_info_request	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	-	✅	✅	✅	✅
kernel_info_reply_valid	kernel_info_request	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	-	✅	✅	✅	✅
kernel_startup	kernel_info_request	-	-	-	-	-	-	-	-	-	-	-	-	-	❌	-	-	-	-
parent_header_correlation	parent_header	✅	✅	✅	✅	✅	✅	✅	✅	❌	❌	❌	✅	✅	-	✅	✅	❌	✅
rich_execute_result	execute_result	❌	✅	⏭️	✅	✅	⏭️	✅	✅	⏭️	⏭️	⏭️	⏭️	⏭️	-	✅	✅	⏭️	⏭️
shutdown_reply	shutdown_request	❌	✅	✅	❌	✅	❌	✅	✅	❌	❌	❌	❌	❌	-	❌	❌	❌	❌
status_busy_idle_lifecycle	status	❌	✅	✅	✅	✅	✅	✅	✅	✅	✅	❌	✅	✅	-	✅	✅	✅	✅
stdin_input_request	input_request	❌	✅	✅	✅	⏭️	❌	✅	✅	❌	⏭️	⏭️	⏭️	✅	-	✅	✅	❌	⏭️
update_display_data	update_display_data	⚠️	⚠️	✅	✅	⏭️	⚠️	⏭️	✅	⏭️	❌	❌	⏭️	⏭️	-	✅	⚠️	⏭️	⏭️