Repaired the bundle-size failure by removing unused dependencies and generated files while preserving offline builds.

• Source archives: 7.24 MiB gzip, 7.80 MiB ZIP, both below 8 MiB.
• Passed forge build, all 43 Solidity tests, and forge fmt --check.
• Passed 13 frontend tests, production build, and dev/preview checks from a clean export.
• Added repeatable pruning and bundle-size checks.

Findings file is written and validated. Snippets were copied programmatically from the source lines they cite, and the proof test is embedded from the scratch file that fails on the current code.

Outcome: four findings in .imd-findings.json, one high, with full coverage rows for all 12 entry points plus two invariants.

• High, permanent fund lock (src/BountyBox.sol:411). After a Pending submission's 3-day review window passes, the creator can no longer approve or reject it, closeSlot rejects it because its revision timer is zero, and refund reverts with ActiveWorkers. Only that worker's escalate can move the job. A worker who submits anything and then disappears, or withholds escalation to extort, locks the escrow forever. The proof test in test/scratch/AbandonedPendingLock.t.sol fails on the current code and passes under either a late-reject or an abandoned-slot-close fix.
• Medium, open request freezes other approvals (src/BountyBox.sol:481). A rejected junk worker can escalate at zero cost, even front-running the creator's approval of a different worker. With a silent or codeless oracle the split pays the junk worker 40% and cancels the creator's chosen submission. Reproduced in test/scratch/PendingRequestFreeze.t.sol.
• Low, unbounded deadline drives settleAfter (src/BountyBox.sol:311). A job with a far or maximal deadline turns any escalation under a silent oracle into a years-long or indefinite freeze of both parties' funds. This follows the brief's "later of deadline or 7 days" rule but has no cap.
• Info, trust assumptions. Immutable oracle, dead-oracle 40% extraction, creator-silence 60% incentive, and pause not extending the join deadline. These are the requested design, recorded for the judge and the frontend copy.

What held: conservation of balance against escrow plus claimable, single payout per job, split arithmetic (the slither divide-before-multiply line is a false positive), the oracle answer once-only and lateness checks, the failed-review strict equality, clock resumption without resurrecting expired windows, and the submit, claim, reject and createJob entry points. The existing suite's 43 tests pass. Nothing outside test/scratch/ and the findings file was changed.

The review is complete and .imd-findings.json holds the result.

Outcome. The math, boundary and numerical-gap areas of src/BountyBox.sol hold up. I found one low-severity boundary issue and no fund-loss defects.

Finding (low). An unbounded deadline in createJob pins the oracle-silence fallback. When a dispute opens, settleAfter becomes the later of the request time plus 7 days or the job deadline, and during that wait refund, approve, reject, submit and closeSlot are all blocked. A creator who sets a deadline a year out and then rejects three times parks the escrow for a year if the oracle never answers. I reproduced it in a scratch test and cited src/BountyBox.sol:311. It matches the brief's literal wording, so I framed it as a design-boundary hazard with a cap or a frontend warning as the mitigation.

What I verified as correct, with measurements where it mattered:

• The 60/40 formula equals floor(0.4 × amount) for every amount, so the slither divide-before-multiply line is a false positive. The remainder goes to the creator and no wei is lost.
• All time boundaries pair exactly: approve/reject use < where escalate uses >=, submit uses < where closeSlot uses >=, oracleAnswer ignores at >= where settleSplit requires >=.
• The clock-pause arithmetic cannot underflow and cannot resurrect an expired window, including the unconditional extension of pending review windows.
• The failedReviews == 3 strict equality flagged by slither cannot be skipped.
• The 250k oracle stipend survives max-size links and reasons because the event emission pre-warms the storage, and caller gas-starvation of the push is infeasible for a realistic 146k-gas adapter.
• The frontend's trust scores use BigInt wei and its action predicates match the contract boundaries.

Coverage. All 12 entry points have a row, plus four invariant rows. Scratch tests live under test/scratch/ and are not part of the submission. No repository files were changed.

Review complete. The findings file is written and validated against the tree, and the whole thing stayed within budget.

What I did

I audited src/BountyBox.sol through the Access Control, Trust Gap and Asymmetry guides from the Pashov reference. I mapped every role and guard, diffed the paired writers (approve vs oracle-yes vs split vs refund, first vs later submit, reject vs oracle-no), and hunted the seams where authorization, economics and asymmetric treatment meet. Each lead was traced with a scratch Foundry test under test/scratch/ before being reported. The project suite (43 tests plus the invariant run) passes on the current code.

Findings written to .imd-findings.json (4 findings, 15 coverage rows, all 12 entry points answered)

1. Medium, with proof. approve() shares the 3-day window check with reject(), so a creator one second late can neither approve, reject, close nor refund. The worker's only exit is the oracle, and a silent or codeless oracle leaves them with 40% of a bounty the creator wanted to pay in full. The proof test fails today with WindowClosed.
2. Medium. A creator can recover the entire escrow at any time by approving a submission from a second wallet of their own. The honest worker's pending or rejected work is cancelled, the job is finalized, and escalation is no longer possible. This bypasses the oracle protection and the "never withdraw after first submission" rule. Reproduced in a scratch test.
3. Medium. Three gas-only junk submissions take all worker slots forever, since closed slots never recycle. Honest workers get LimitReached and the creator can only refund and recreate, where the squatter repeats. The scratch test fails with LimitReached after all three squatters are closed and the deadline is still open.
4. Low. refund() does not mirror _finalize(): last submissions stay Rejected or FailedReview and no Cancelled event is emitted, so the audit log and timeline diverge between refund and the other terminal paths.

Coverage notes

Everything else in my area holds: claim is strictly beneficiary-keyed with state zeroed before the call, oracleAnswer is oracle-only and ignores stale, replayed and late answers, settleSplit conserves every wei, escalate is worker-only with one open request per job, and there is no owner, setter or upgrade path. Findings 2 and 3 are consequences of the brief's own rules, so I framed the fixes as scope decisions rather than silent redesigns. I did not reach the frontend trust-score code or the slither timestamp leads beyond confirming they are the intended boundary comparisons.

The review is complete. The findings file is written, snippet lines verified against the tree, scratch tests removed, and no tracked file was changed.

Outcome. The control flow of BountyBox.sol is sound on every value-moving path. I traced all twelve entry points through their guards, state writes and failure paths, and found two low-severity defects, both reproduced with Foundry on the current code.

Findings written to .imd-findings.json:

1. Low, liveness lock. Once a creator misses the 3-day review window on a Pending submission, the creator can neither approve nor reject it, cannot refund (slot is active), and nobody can close the slot (its revision timer is zero). The only remaining state change on the job is the worker's escalate. If that worker never acts, the escrow is unreachable by everyone with no timeout. Reproduced with the exact revert sequence, including a 365-day warp.

2. Low, unenforced "must revise" rule. The code comment in escalate says a failed oracle review must be revised, but submit never compares the new content hash or link with the previous one. A byte-identical resubmission after a failed review gets a fresh review window and can be escalated to the oracle again, reaching the 60/40 fallback if the oracle stays silent on the repeat. Reproduced end to end with the worker credited 4 ETH on unchanged content.

Leads I ran down and dropped:

• Caller gas-starvation of the oracle request. The trace shows that after the adapter runs out of gas, the retained 1/64 must still clear the 2300-gas SSTORE sentry when the reentrancy guard resets, so the outer call only survives when the adapter also had enough gas. Not reachable for any adapter needing less than roughly the whole stipend, and the docs already route the operator to the logged request.
• Adapter stipend versus maximum context size. Worst case (2 KB link plus seven 1 KB reasons) measured 146k to 164k gas, because the contract's own Escalated event warms every string slot before the call. Under the 250k stipend.
• Slither's divide-before-multiply and strict-equality lines. The quotient/remainder split equals amount * 40 / 100 for all amounts, and failedReviews == 3 cannot be skipped because a closed slot can never escalate again.

Coverage. All twelve entry points have a row. Nine hold, three carry findings (closeSlot and refund for finding 1, submit for finding 2). I also recorded the conservation and single-request invariants and a periphery check of the frontend's allowedActions predicates, which match the contract boundaries line by line. Nothing in my area was left unreached.

Added adversarial, fuzz, and stateful invariant tests under test/.

• forge build and forge test pass: 81 tests, using the required seed.
• Contract coverage: 100% of measured lines, statements, branches, and functions.
• No contract defects reproduced.
• No implementation or configuration files changed.