fix(slack): sanitize outbound Block Kit payloads — invalid_blocks / msg_too_long hardening - #69317

Merged

teknium1 merged 8 commits into

mainfrom

slack/c5-block-limits

Jul 22, 2026

Commits on Jul 22, 2026

fix(slack): harden rich table block fallback

tw0316
authored and
teknium1
committed
a7e480b
fix(slack): guard rich_text builders against empty content rejected as invalid_blocks

kamonspecial
authored and
teknium1
committed
34b422e
fix: replace assert with runtime guard in Slack block_kit rich_text builder

AlexFucuson9
authored and
teknium1
committed
8492a61
fix(slack): truncate inflated original_text in approval/confirm chat.update handlers

liuhao1024
authored and
teknium1
committed
b8a68a8
fix(slack): guard against empty text in chat.postMessage

liuhao1024
authored and
teknium1
committed
d0989ba
fix(slack): truncate edit_message content to prevent msg_too_long

sowork-skills
authored and
teknium1
committed
aab0659
fix(slack): sanitize outbound Block Kit payloads at the API boundary
teknium1
committed
fa90649
test(slack): regression tests for Block Kit boundary sanitizer and oversized edits
teknium1
committed
63d0a90