[ac-pplx]

Summary

A single sandboxes row whose stored lifecycle is not canonical text no longer fails a node's whole PublishNodeState. The two steps that failed on such a row, pause-failed recovery and activation rollback, now skip it and leave its lifecycle as stored. The rest of the publication commits, including that row's observed state and activity clocks.

Example: a pause-failed quarantined row stored as ' Quarantined'. Pause-failed recovery selects candidates with LOWER(TRIM(s.lifecycle)) = 'quarantined', but the recovery write in pplx_space_sandbox_store::ingest matches lifecycle = 'quarantined' exactly. The row was selected, the write matched nothing, and the publication answered Aborted. That rolled back the node's whole publication, and every later one failed the same way until someone repaired the row. The activation-rollback candidate query had the same shape: it decoded LOWER(TRIM(s.lifecycle)) as a SandboxLifecycle, so a value no lifecycle names, such as bogus (the column has no CHECK), failed the publication with Internal.

Change (sandbox_quarantine_store.rs):

• Pause-failed recovery reads the stored lifecycle with each candidate and skips any row that does not parse as quarantined.
• Activation-rollback candidates read the prior lifecycle as text and omit the receipt of any row whose trimmed, lower-cased text names no lifecycle.
• Each skipped row logs a warning with the node and sandbox ids and counts in sandbox.state_publication.degraded with field:stored_lifecycle and disposition skip_pause_failed_recovery (recovery) or omit_transition_receipt (rollback receipt). stored_lifecycle and skip_pause_failed_recovery are new label values in pplx-space-metrics.
• Stored values are not rewritten and the write's predicate is unchanged. Any other miss of the pause-failed write still fails the publication, because that write may have applied in part.

Changed test expectations:

• lifecycle_writers::healthy_report_recovers_only_a_pause_failed_quarantine: stored " Quarantined " now publishes Ok, and the row and its quarantine are unchanged (was: publication Err, rolled back).
• lifecycle_writers::activation_rollback_receipt_converges_its_target_out_of_every_live_lifecycle: stored "bogus" now publishes Ok and the row is unchanged (was: publication Err, rolled back).
• New: published_state::node_publish_recovers_pause_failed_rows_past_a_non_canonical_one publishes a padded and a canonical pause-failed row in one PublishNodeState. The canonical row recovers. The padded row keeps its text and quarantine, and its observation records the published state.
• New: lifecycle_writers::activation_rollback_converges_past_a_receipt_skipped_for_its_stored_lifecycle publishes rollback receipts for a bogus and a starting row in one publication. The starting row converges; the bogus row keeps its lifecycle, placement, execution and port exposures.

Validation

At this head, rebased onto main after #1426 turned the two changed lifecycle_writers tests into rstest cases (this PR's edits are reapplied to those cases; the new rollback test is unchanged):

• cargo fmt --all -- --check, ci/scripts/run-archcheck.sh (0 findings) and cargo clippy --workspace --locked --all-targets --all-features -- -D warnings: pass.
• SPACE_CI_REQUIRE_TEST_DEPS=1 cargo nextest run --all-features --no-fail-fast -p pplx-space-internal-api-server -p pplx-space-metrics, Postgres running: 479 run, 479 passed, 0 skipped. Each of this PR's tests takes under 0.4 s (ci/scripts/check-test-durations.py passes).
• With internal-api: parse the published sandbox status once at ingest (narrow behaviour change: non-ASCII spellings are unrecognized) #1411's code under them, all 7 cases of the changed and new tests fail for the expected reasons (Aborted: pause-failed recovery CAS failed, and Internal: ... unknown sandbox lifecycle 'bogus').

On an earlier revision of this change, before the crate layer move and #1426, with the same non-test code:

• With the rollback's continue replaced by return Ok(Vec::new()), only the new rollback test failed (converged row); restored, it passed.
• Fresh Kind cluster (SPACE_KIND_TELEMETRY_MODE=otel infra/space/kind/scripts/up.sh, every SPACE container at that commit), then scripts/tests/smoke-kind-typed.sh all with CI's admin-token file and cold-receipts directory: ECW 91/91 and native 42/42 passed, 0 warned or failed, 1h06m wall (ecw.cold_create_environment and local.telemetry_reaches_local_backends ran).

Not validated: an end-to-end Kind reproduction, which needs a hand-edited sandboxes row; the Postgres tests cover it.

Severity and risk

Severity: medium. One malformed row could stop a node's state publication indefinitely and leave its whole inventory stale.

Risk: low. Pause-failed recovery skips only selected rows that its exact-match write could not move. Activation rollback skips only rows whose trimmed, lower-cased lifecycle names no lifecycle. Its writes would match those rows, but it needs the prior lifecycle, so the receipt is not applied: the row keeps its lifecycle, its active execution and its port state. The node keeps publishing the receipt while its local row holds it, so a publication after the row is repaired can apply it while the receipt's execution and activation attempt are still active. Each skip logs a warning and counts in sandbox.state_publication.degraded instead of failing the publication. A dashboard or monitor filtering sandbox.state_publication.degraded by disposition sees the new values. Roll back by reverting. No schema or protocol change.

Rollout

Only internal-api changes. While old and new replicas run together, a node's publication over such a row fails on an old replica and commits on a new one, so it can alternate until the rollout completes. Nodes are unaffected.

Stack

Lands on top of #1411 (parse the published status once at ingest). Merge #1411 first; this branch holds only the one commit above it.

AI assistance: Claude Code drafted the code, tests and this description, and ran the validation.

[ac-pplx]

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Walkthrough

Activation rollback and pause-failed recovery now skip receipts or rows whose stored lifecycle is non-canonical. These skips record a degraded publication metric and warning without rejecting the publication. Other eligible receipts can still converge. Tests cover unknown-lifecycle rollback receipts, mixed rollback receipts, and canonical versus padded pause-failed lifecycle values.

Possibly related issues

• perplexityai/SPACE issue 876: It concerns publication failures and quarantine state. This change also changes how publication recovery handles non-canonical quarantine lifecycle values.

Possibly related PRs

• perplexityai/SPACE#1420: It changes the same recovery paths and addresses non-canonical stored lifecycle values.
• perplexityai/SPACE#1411: It changes lifecycle parsing and activation-rollback receipt selection, which this change extends to stored lifecycle text.

Merge Risk: Low · up to ffa46

Publication can proceed while affected sandbox rows remain unresolved and require repair. The change is mergeable with awareness of that behavior.

Security architecture risk: Low · up to ffa46

The change isolates malformed rows without weakening the inspected node-ownership or access checks. Skipped rows retain their existing lifecycle and protections; successful publication does not mean their recovery completed. Operational repair remains necessary.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The changed behavior is bounded to recovery candidates belonging to the publishing node and carrying the required execution identity. A malformed stored row no longer blocks progress for other rows in that publication; the inspected change does not grant authority over another node’s sandboxes.

Security Findings and Attack Paths

• inferred — The strongest examined attack path was successful publication retaining an active execution and open exposure for an unknown-lifecycle rollback row. Those retained values also predate the PR’s successful-publication behavior. The checked route consumers require valid lifecycle and authorization, so committing observations does not establish newly authorized access through those paths.

Trust Boundaries and Controls

• observed — Route resolution remains separate from publication telemetry. The inspected session path checks attach authorization, ingress revocation and expiry, lifecycle eligibility, active-node assignment, and backend availability. Service routing parses stored lifecycle before issuing a route and requires started lifecycle for service-port ingress.

Resilience and Maintainability Implications

• observed — Skipping rollback does not emit its completion event or consume the skipped receipt. The inspected node persistence retains receipt fields while reported state matches the receipt target, preserving replayability after repair. Automatic repair and the eventual republication trigger were not established.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Title check		The title describes the change, but it does not follow the required prefix format. It starts with the extra [cr-test] prefix and then uses internal-api: before the summary.	Use a single valid area prefix, such as "internal-api: skip one non-canonical stored lifecycle instead of aborting the node's whole publication" or "[internal-api] skip one non-canonical stored lifecycle instead of aborting the node's whole…

Passed checks: 4 passed

Check name	Status	Explanation
Description Follows The Pr Template		The description contains all required non-empty sections and content: ## Summary explains the merge behavior; ## Validation lists commands and results; ## Severity and risk gives medium severity…
Bug Fixes Name A Regression Test		The pull request fixes application behavior in crates/. The Validation section reports 479 tests passing with the fix and states that all seven changed or new regression-test cases fail with the prior…
Weakened Safeguards Are Justified		No weakened repository safeguard is introduced. The diff changes two tests to require successful publication and unchanged non-canonical rows, and adds equivalent multi-row tests that assert the skipp…
Public-Safe Content		The title, description, commit subjects, and reviewed diff contain no credential values, tokens, private keys, internal URLs or hostnames, cloud identifiers, workstation paths, production logs, or und…

Full details: Description Follows The Pr Template

Explanation

The description contains all required non-empty sections and content: ## Summary explains the merge behavior; ## Validation lists commands and results; ## Severity and risk gives medium severity and low risk; and AI assistance: identifies Claude Code and the drafted materials.

Full details: Bug Fixes Name A Regression Test

Explanation

The pull request fixes application behavior in crates/. The Validation section reports 479 tests passing with the fix and states that all seven changed or new regression-test cases fail with the prior implementation. The diff includes regression coverage for padded Quarantined recovery and bogus lifecycle rollback, including multi-receipt processing.

Full details: Weakened Safeguards Are Justified

Explanation

No weakened repository safeguard is introduced. The diff changes two tests to require successful publication and unchanged non-canonical rows, and adds equivalent multi-row tests that assert the skipped row remains unchanged while another row converges. The description gives the specific reason for this behavior change. No tests, lints, CI checks, allowlists, or repository guards are removed or weakened.

Full details: Public-Safe Content

Explanation

The title, description, commit subjects, and reviewed diff contain no credential values, tokens, private keys, internal URLs or hostnames, cloud identifiers, workstation paths, production logs, or undisclosed security details. The validation references are generic test terms, and the test admin-token file is only mentioned by name; no secret value is exposed.

Full details: Title check

Resolution

Use a single valid area prefix, such as "internal-api: skip one non-canonical stored lifecycle instead of aborting the node's whole publication" or "[internal-api] skip one non-canonical stored lifecycle instead of aborting the node's whole publication".

Recent review info

Automatic approval policy

Commit: ffa4676eef94.

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Failed pre-merge checks:
- Title check:
Use a single valid area prefix, such as "internal-api: skip one non-canonical
stored lifecycle instead of aborting the node's whole publication" or
"[internal-api] skip one non-canonical stored lifecycle instead of aborting the
node's whole publication".

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Files selected for processing: 4

• crates/l40_api/internal/api/server/src/published_state_tests/lifecycle_writers.rs
• crates/l40_api/internal/api/server/src/sandbox_quarantine_store.rs
• crates/l40_api/internal/api/server/tests/published_state.rs
• crates/libs/metrics/src/sandbox/publication.rs

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Closing: CodeRabbit configuration test finished; the tested configuration is in #1496.