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gsxdsm b9c5df04af FN-8791: prevent NUL-containing chat checkpoints from crashing 
Prevent malformed tool output from breaking chat checkpoint persistence.

- Sanitize NUL characters at chat JSONB persistence boundaries without mutating clean values.
- Observe rejected best-effort checkpoint writes so streaming sessions do not emit unhandled rejections.
- Add PostgreSQL, dashboard, and sanitizer regression coverage with operator-facing release notes.

Files changed:
 .changeset/fn-8791-chat-nul-checkpoint.md          |  7 ++
 .../reliability/chat-jsonb-nul-sanitization.md     | 44 +++++++++++
 packages/core/src/__tests__/nul-sanitize.test.ts   | 21 ++++-
 .../chat-store-content-search-edit.pg.test.ts      | 91 +++++++++++++++++++++-
 packages/core/src/async-stores/async-chat-store.ts | 61 ++++++++++-----
 packages/core/src/postgres/nul-sanitize.ts         | 17 ++--
 .../dashboard/src/__tests__/chat-manager.test.ts   | 90 +++++++++++++++++++++
 packages/dashboard/src/chat.ts                     | 21 ++++-
 8 files changed, 322 insertions(+), 30 deletions(-)

Fusion-Task-Id: FN-8791

Fusion-Task-Lineage: 51e13634-04cc-4827-b72f-f33e40760940

Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>
2026-08-04 19:15:20 -07:00
..
__test-utils__
fix: prevent stale planning approvals and review churn (#3327)
2026-08-04 00:20:08 -07:00
__tests__
FN-8791: prevent NUL-containing chat checkpoints from crashing
2026-08-04 19:15:20 -07:00
agents
fix(FN-8785): ignore completed duplicate history
2026-08-04 10:52:12 -07:00
ai
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
async-stores
FN-8791: prevent NUL-containing chat checkpoints from crashing
2026-08-04 19:15:20 -07:00
automation
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
backup
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
board
FN-8762: extract Todo Lists into bundled plugin
2026-08-03 09:04:45 -07:00
branch
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
central
feat: restart the development engine on source changes (#3329)
2026-08-04 08:57:30 -07:00
chat
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
cli
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
config
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
db
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
docker
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
duplicates
fix(FN-8785): ignore completed duplicate history
2026-08-04 10:52:12 -07:00
eval
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
git
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
goals
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
i18n
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
ideation
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
insights
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
memory
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
merge
FN-8769: protect default-branch mission merges
2026-08-03 16:48:25 -07:00
mesh
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
missions
FN-8769: protect default-branch mission merges
2026-08-03 16:48:25 -07:00
notification
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
planner
fix: prevent stale planning approvals and review churn (#3327)
2026-08-04 00:20:08 -07:00
plugins
FN-8762: extract Todo Lists into bundled plugin
2026-08-03 09:04:45 -07:00
postgres
FN-8791: prevent NUL-containing chat checkpoints from crashing
2026-08-04 19:15:20 -07:00
process
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
research
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
sandbox
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
secrets
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
stores
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
task-store
FN-8785: deduplicate queued dependency and scope logs
2026-08-04 11:52:15 -07:00
tasks
FN-8770: consolidate task display sorting
2026-08-03 16:15:12 -07:00
types
FN-8785: deduplicate queued dependency and scope logs
2026-08-04 11:52:15 -07:00
workflows
fix: prevent stale planning approvals and review churn (#3327)
2026-08-04 00:20:08 -07:00
_layout.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
builtin-traits.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
column-roles.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
detect-content-language.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
gh-cli.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
index.gate.ts
fix(FN-8785): ignore completed duplicate history
2026-08-04 10:52:12 -07:00
index.ts
fix(FN-8785): ignore completed duplicate history
2026-08-04 10:52:12 -07:00
plugin-mcp-servers.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
plugin-task-store-gate.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
project-lane-vocabulary.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
provider-instance.test.ts
FN-8651: add named provider credential instances
2026-07-31 21:56:30 -07:00
provider-instance.ts
FN-8651: add named provider credential instances
2026-07-31 21:56:30 -07:00
session-identity-registry.ts
fix(security): make the approval and permission gates actually enforce (#2457)
2026-07-30 21:50:37 -07:00
store.ts
FN-8785: deduplicate queued dependency and scope logs
2026-08-04 11:52:15 -07:00
task-delete-attribution.ts
FN-8673: comment on split source issue closures
2026-08-01 02:47:25 -07:00
task-delete-notice.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
task-document-concurrency.ts
feat(core): support additive archived task documents (#2375)
2026-07-22 08:30:12 -07:00
task-lane-cache.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
tool-output-budget.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
types.ts
FN-8770: consolidate task display sorting
2026-08-03 16:15:12 -07:00
workflow-events.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00
workflow-merge-proof.ts
refactor: domain folder layout (types, API, core, engine) (#2398)
2026-08-03 00:20:53 -07:00