fix(entrypoint): guard slash reports and document the v0.19 reset

[hmzakhalid]

What

interfold node reset-data and interfold nodes purge refused only for key shares of E3s that the node had not seen complete. A slash report stays in the slash writer's state after its E3 completes, until the node submits it or sees it settled, and the chain cannot restore its evidence. A reset of a node with a complete E3 and an unsubmitted report therefore deleted the report.

• Both commands also read the slash writer state of each chain and refuse while it holds a report. The refusal lists each chain and its number of reports. A record that does not decode fails the check, and so does a record under any other key below the slash writer prefix. --allow-active-e3s overrides this refusal as it does the others.
• All checks run before a command refuses. One refusal, or one override warning, lists the E3s with key shares, the slash reports and, for nodes purge, a store without an operator key, so that an override never deletes something that no refusal showed.
• The slash writer no longer records a quorum for an intent that has already completed, so a submitted report does not return to its durable state and block a reset.
• The upgrade guide and the Docker move procedure describe the v0.19 reset: the checks before a reset, when a listed E3 allows it (stage 5 or 6, and the report deadline in the past), and a way back when the reset refuses. The reset must run with the v0.19.0 binary.
• The agent docs and comments no longer describe schema 7 as current.

This PR no longer raises SCHEMA_VERSION: #2153 raised it to 8 for the signed DKG layouts.

Tests

• e3-entrypoint (library): finds_unsubmitted_slash_reports, slash_records_under_unknown_keys_fail_the_check, one_refusal_lists_key_shares_and_slash_reports
• tests/reset_data_guard.rs: a reset with an unsubmitted slash report on a complete E3 refuses, names the chain and count, and keeps the report; the override deletes it; a key share and a slash report appear in one refusal. The binary keeps all scenarios in one test because execute opens its store through the process-wide event bus.
• tests/purge_guard.rs: a store without an operator key that holds a slash report lists the report in the refusal.
• e3-evm: a_completed_intent_is_not_recorded_again
• Each new regression fails with its fix reverted.

Checklist

• Verified — cargo test -p e3-entrypoint (library, reset_data_guard, purge_guard, validate_older_schema), the library tests of e3-sync, e3-events and e3-evm, layout_lock, cargo clippy --no-deps -D warnings for those crates, scripts/check-invariants.sh and scripts/check-doc-sync.sh, on the test host.
• Harness docs — agent/CRATES_ARCHITECTURE.md, flow-trace 02, 03 and 07, agent/invariants/03_ACTOR_RUNTIME.md, docs/pages/operate/running.mdx, docs/pages/operate/upgrades.mdx, docs/pages/reference/cli.mdx.
• Invariants — checked against the reset, purge and storage-schema entries. No layout, wire or schema change.
• Known bugs table — no row.
• Breaking? — no. The schema change shipped in fix(keyshare)!: authenticate dealers of DKG shares [skip-line-limit] #2153. reset-data and nodes purge refuse in one more case, which --allow-active-e3s overrides. Rollout class — none for this PR.
• Review — Codex (GPT-6.1 Sol) review of the rebased branch, two fix rounds: a key-share refusal and the purge identity refusal hid slash reports from the refusal, unknown slash-writer keys passed unread, and the writer re-recorded completed intents. Final re-review: no findings.

Summary by CodeRabbit

• Bug Fixes

  • Reset and purge now check for unsubmitted slash reports as well as active E3 key shares, helping prevent the loss of state that cannot be restored from chain history.
  • Refusals identify the protected state found. The --allow-active-e3s option can override these checks, with warnings.

• Documentation

  • Updated upgrade and migration guidance for schema changes, reset and purge safeguards, and recovery steps.
  • Clarified which older stores and releases are supported and when a reset and resync are required.

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🧰 Additional context used

📚 Code guidelines (4)

agent/RULES.md — auto-discovered
agent/CONTEXT.md — auto-discovered
AGENTS.md — auto-discovered
agent/invariants/00_INDEX.md — auto-discovered

📝 Walkthrough

Walkthrough

The changes add pending slash-report checks to state reset and purge, update slashing-writer intent handling, and revise schema, reset, and upgrade guidance for v0.19.0.

Changes

State safety and upgrades

Layer / File(s)	Summary
Track pending slash reports crates/events/src/store_keys.rs, crates/evm/src/slashing_writing/*	The slashing writer exposes pending report counts and records intents before admission. It skips recording completed duplicate intents.
Guard reset and purge crates/entrypoint/src/nodes/{state_guard.rs,reset_data.rs,purge/effects.rs}, crates/entrypoint/tests/*guard.rs	Reset and purge now check pending slash reports alongside active E3 key shares. Checks combine applicable refusals and warnings. Tests cover pending reports, overrides, and invalid slash-writer records.
Schema and upgrade guidance agent/*, crates/sync/src/sync/*, docs/pages/operate/*, docs/pages/reference/cli.mdx	Documentation describes schema compatibility, reset and resync requirements, slash-report safeguards, and the v0.19.0 Docker migration procedure.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~30 minutes

Change: Bug fix

Sequence Diagram(s)

sequenceDiagram
  participant Reset as reset_data::execute
  participant Repositories
  participant Discovery as pending_slash_reports
  participant Guard as check_deletion
  Reset->>Repositories: Read slash-writer recovery state
  Reset->>Discovery: Check pending slash reports
  Discovery->>Repositories: List keys and read recovery state
  Reset->>Guard: Check active E3s, reports, and override

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Suggested reviewers: ctrlc03

Merge Risk: 🔵 Low · up to e4cfa

The commands protect pending reports by default, but their CLI reference does not clearly warn operators that the override can delete them. Correct the guidance before relying on that flag.

Security Architecture Review

Security architecture risk: 🔵 Low · up to e4cfa

Pending slash reports gain default protection against accidental deletion, and completed reports are no longer recorded again during normal execution. Bypassing protection remains an explicit local operator action. Incomplete failure-path disclosures and uncertainty about the full upgrade and recovery surface keep the assessment above minimal.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The reviewed destructive path is exercised by a local operator with filesystem deletion authority. Its maximum demonstrated data scope is the selected node's durable state for reset, or the planned local stores and configuration for purge, spanning all discovered slash-writer chains. The inspected changes do not demonstrate a new remotely callable deletion boundary.

Security Findings and Attack Paths

• observed — A residual disclosure gap exists when purge cannot open a store: the branch invokes only the active-E3 failure check, rather than the combined report check. Default execution still refuses, and store-in-use failures are not overrideable, but an explicit override can proceed without a slash-report-specific uncertainty warning. This head-state limitation is not established as introduced or worsened by the PR.

Trust Boundaries and Controls

• observed — Unexpected writer keys and decoding failures do not establish deletion eligibility. Normal reset and purge paths retain local process fences across checking and deletion, while purge also rejects newly created folders that gained unchecked state during preflight.

Resilience and Maintainability Implications

• observed — The CLI reference describes the override in terms of key shares and cannot-check refusals, without disclosing pending slash-report deletion. This conflicts with the effective guard contract. The explicit runtime deletion warning and the upgrade guide's correct report guidance substantially limit the resulting operator-consent risk.

Hardening Proposals

• proposed — Keep the CLI reference and whole-store failure warnings aligned with the combined deletion contract: disclose that the override can remove unrecoverable slash evidence, including evidence that could not be inspected.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 75.68% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 37 functions across 12 files. (8 skipped:…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the main change: adding slash-report safeguards to entrypoint commands and documenting the v0.19 reset.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 75.68% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 37 functions across 12 files. (8 skipped: 8 unsupported.)

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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Inline comments:
Review comments at @docs/pages/reference/cli.mdx:
- Around line 726-727: Update the `nodes purge`, reset, and `purge-all`
documentation to describe refusal when unsubmitted slash reports exist and
clarify that `--allow-active-e3s` overrides that refusal but deletes those
reports, whose evidence the chain cannot restore. Keep the documented key-share
and cannot-check behavior consistent with the updated refusal list.

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ℹ️ Review info

⚙️ Run configuration

• Configuration used: Repository: theinterfold/interfold/.coderabbit.yaml
• Review profile: CHILL
• Plan: Advanced
• Run ID: 377576ce-d5e3-48f0-951c-6105989221c4

📥 Commits

Reviewing files that changed from the base of the PR and between 6fa97cd and e4cfa6f.

📒 Files selected for processing (20)

• agent/CRATES_ARCHITECTURE.md
• agent/flow-trace/02_TOKENS_AND_ACTIVATION.md
• agent/flow-trace/03_E3_REQUEST_AND_COMMITTEE.md
• agent/flow-trace/07_UPGRADES.md
• agent/invariants/03_ACTOR_RUNTIME.md
• crates/entrypoint/src/nodes/purge/effects.rs
• crates/entrypoint/src/nodes/reset_data.rs
• crates/entrypoint/src/nodes/state_guard.rs
• crates/entrypoint/tests/purge_guard.rs
• crates/entrypoint/tests/reset_data_guard.rs
• crates/events/src/store_keys.rs
• crates/evm/src/slashing_writing/actor.rs
• crates/evm/src/slashing_writing/handlers.rs
• crates/evm/src/slashing_writing/workflow.rs
• crates/sync/src/sync/node_role.rs
• crates/sync/src/sync/tests/role.rs
• crates/sync/src/sync/tests/schema.rs
• docs/pages/operate/running.mdx
• docs/pages/operate/upgrades.mdx
• docs/pages/reference/cli.mdx

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