Implemented five contracts, ABI exports, tests, and deployment/operations documentation.

All checks pass: forge build, forge test (80 checks), forge fmt --check, and ABI consistency. Stateful invariants passed 8,192 calls.

Independent review, live endpoint verification, and deployment remain launch-stage work.

Created launch.json with five contracts in dependency order, $owner, and the approved Squeek addresses.

Validated schema, constructor ABIs, and references. forge build succeeded; all 80 tests passed with the required fuzz seed.

Only launch.json was added.

The review is complete. Findings are in .imd-findings.json with 48 coverage rows, and no tracked file was changed.

Findings

1. Medium, Army loss rounding at src/Army.sol:485. Casualties are rounded up per unit stack, so any nonzero attack kills at least one unit of every defending stack. One Spearman worth 180 kills a lone Charger and a lone Catapult worth 1,440 combined and earns 1,660 attack points. Sybil wallets can repeat this three times a day per target and against every stationed support contingent. The proof test in test/scratch/LossRounding.t.sol fails on the current code.

2. Medium, SeedLedger repoint at src/SeedLedger.sol:238. If the Core counter ever reads lower than the last checkpoint, checkpoint and every new found() revert. Repointing to the same Core address does not rebaseline, so the owner needs two 72 hour repoints through an unrelated address. The pinned Sepolia Core is a 761 byte proxy, which makes a counter reset through an upgrade a realistic case. Reproduced in test/scratch/WorkDecreased.t.sol.

3. Low, Villages treasury at src/Villages.sol:390. Buying the peace shield while a longer shield is active burns 4,000 SEED and starts the 3 day cooldown with no effect. Reproduced in test/scratch/PeaceNoop.t.sol.

What held under the Math Precision, Boundary and Numerical Gap passes

• Production, wheel bonus integral, boost window, upkeep and storage cap were traced and stay in range over 400 days at maximum levels.
• Build, field, research and unit quotes match the brief's tables. The Squeek reduction never exceeds 30 percent.
• Walls damage and repair scheduling, camp stock integral, travel time, loot split and champion stats hold.
• The live Sepolia reads work today. The Core's state() returns exactly eight words that pass the width checks at about 28k gas, and the NFT's balanceOf returns one word.
• The Slither leads on weak PRNG, divide-before-multiply and strict equality are false positives in this code.

Not reached

No launch.json exists yet, so no manifest review was possible. Access control, economics beyond the rounding exploit, and control flow belong to the other specialists and were only read, not audited.

Review complete. The findings file is written at .imd-findings.json with one finding and 50 coverage rows, one for every listed entry point plus invariant, periphery and manifest rows. The working tree is unchanged apart from the allowed test/scratch/ probe, which is gitignored.

What I covered. I applied the Execution Trace, Periphery and First Principles guides to all five contracts, tracing every state-changing entry point through its guards, state writes and failure paths, plus the two libraries, the rules tables against the brief, and the Core/NFT decode paths. The existing suite passes, and the ABI export check passes.

One finding, low severity. A Core cumulativeWork counter that goes backwards leaves the game stuck with no single-step recovery:

• SeedLedger._checkpoint reverts with WorkDecreased, and register runs that checkpoint inline on any day without an observation, so every Villages.found() reverts too, not just the first registration as the security handoff states.
• applyRepoint only rebaselines when the pending Core differs from the current one, so repointing to the same address after 72 hours changes nothing. The owner has to detour through a different compatible contract, costing two 72-hour waits with no founding or checkpoints, and after renounce it is unrecoverable.
• Reproduction is in test/scratch/Probe.t.sol, which demonstrates the stuck state on the current code. The fix is one line: rebaseline unconditionally in applyRepoint.

No proof file is attached since the finding is not high or critical.

What holds. Movement state transitions, raid limits at departure and arrival, shield and clan rechecks, support lifecycle, wall damage and repair scheduling, production and boost settlement across checkpoints, build and research slot handling, refund bounds, champion caps, and all namespace and reentrancy boundaries behave as the brief and economy document describe. The documented interpretations such as shield drop on dispatch, open clan joining cancelling in-flight raids, and the per-attacker raid limit are design choices, not defects, and I did not report them.

Open item for the manifest reviewer. The README's $owner value is not stated in the brief text, so it must be matched against the request's owner field when the manifest is reviewed.

Review complete. The findings file at .imd-findings.json holds 3 substantiated findings and a 52-row coverage record (all 46 listed entry points plus 6 invariant rows). No repository files were changed; the scratch tests live under the gitignored test/scratch/.

What I found (economics area: Economic Security, Invariant, Flow Gap)

• Medium: open clan join grants immunity and cancels in-flight raids. Any village with Clan Hall 1 can join any clan that has a free slot, with no invitation, cooldown, or kick. A raid target can join the attacker's clan mid-flight, the battle is cancelled at arrival, then leave and repeat forever. The clan cannot remove the intruder, and dissolving it reserves the name permanently. Reproduced in a scratch test over three cycles.
• Low: a decreased Core counter freezes checkpoints and new founding permanently. One decrease of cumulativeWork makes every checkpoint, and therefore every founding on a stale day, revert, and the 72-hour repoint cannot rebaseline when the Core address is unchanged. Already-recorded SEED stays claimable. Reproduced.
• Low: raid limit is per attacker/target pair, not per target. The brief says three raids per target per day; the key hashes the attacker too, so six raids landed on one target from two wallets in one day. Documented by the builder as an interpretation, reported as a deviation from the approved wording.

What held. Every formula in the brief (production, wheel bonus, upkeep, costs, build and research times, NFT speed cap, battle, loot, walls damage and repair, champion, market, treasury, camps, ranking) matched the code. SEED conservation, storage cap, room accounting, once-per-day checkpoint and claim, and the no-cross-village-transfer rule all traced clean. The live Sepolia Core and NFT endpoints returned the layouts the ledger expects. The existing 79 unit and fuzz tests pass, and the five stateful invariants pass at reduced runs.

Not reached. No proof-grade test was warranted since no high or critical finding emerged. The manifest step has not run, so no launch.json was reviewed; the README constructor table matches declaration order.

Review complete. The findings file is written at the repository root and nothing else in the tree changed (only the ignored .imd-findings.json and test/scratch/).

Scope covered. I mapped the full permission model (SeedLedger owner timelock, Villages player/onlyArmy guards, Army and Clans caller-keyed namespaces, permissionless finalizers) and ran the Access Control, Asymmetry and Trust Gap passes over all five contracts. The namespace design, the onlyArmy callback boundary, the confused-deputy paths through Army.resolve, and the owner timelock all hold. All 46 listed entry points have a coverage row, plus rows for the manifest owner argument and two brief invariants. Nothing was left unreached.

Findings (5), in severity order:

1. Medium, src/Clans.sol:103. Any wallet with Clan Hall 1 joins any clan with a free slot, uninvited. Because clanmates cannot attack each other and Army.resolve re-checks the clan at arrival, a target cancels an in-flight raid by joining the attacker's clan and becomes permanently immune to every member. The founder cannot remove them. A proof test under test/scratch/ClanJoinImmunity.t.sol fails on the current code. The builder documented open joining as an interpretation, so I flagged the fix as a scope decision.
2. Medium, README.md:32. The README tells the manifest writer that $owner resolves to a literal wallet that appears nowhere in the brief or pinned inputs. Following it would hand the only privileged power (the endpoint repoint) to an unverified address. The manifest must carry $owner.
3. Low, src/SeedLedger.sol:142. Checkpoint timing by any wallet sets the whole day's Wheelhouse bonus and build work factor for everyone. Measured: identical Core work yields credited day work of 8 versus 11,000 depending on when the two calls land.
4. Low, src/Clans.sol:115. The founder can never leave while any member remains and has no kick, so one idle or hostile join locks them in for the season.
5. Low, src/SeedLedger.sol:238. After a Core work decrease, repointing to the same Core address does not rebaseline, so recovery needs two 72-hour cycles. Reproduced with a scratch test.

Not reported. Permissionless completion of builds, research and training, the host recalling support, and the owner's repoint power are documented design choices and are recorded as trust assumptions in the coverage rows rather than as defects. Slither leads in my area (reentrancy lines) were traced and found guarded by nonReentrant or static reads.

I found no critical, high or medium defects. I've added 30 tests in two new files, and forge build and the full forge test (110 tests, 0 failures) pass with the verifier's fuzz seed. I only added files under test/; the existing tests and source are untouched, and nothing is committed.

test/EdgeCases.t.sol: mostly failure paths, each checking the exact revert reason and, where it matters, that a rejected call changes nothing.

• SeedLedger:
  • Registering the zero address or the same wallet twice is rejected.
  • SEED burns and refunds can't go past what a namespace has, and an outside caller can never touch the game's own accounts.
  • Every owner action is refused to any other wallet, and a renounced owner keeps no powers.
  • The 72 h timelock fails at 72 h minus 1 second and works at exactly 72 h.
  • Switching to a new Core whose counter is much higher mints nothing for that jump.
  • A switch to a broken Core or a Squeek address with no contract reverts and keeps the current sources.
  • There is one checkpoint per day, with the boundary at exactly 04:00 UTC.
• Villages: name length, character and case-collision rules; every build-order rejection; build timing (can't complete early, can't cancel at or after ready, another wallet can't cancel yours); 80% SEED refund on cancel; research gates; market rejections and storage overflow (all atomic); treasury prices and limits; clan gates.
• Army: every send rejection, resolve timing and finality, training and room limits, champion point rules. Also a test where two Catapult waves land at once: Walls drop to 0, then repair exactly one level every 12 h.
• Fuzz tests:
  • Exact market arithmetic.
  • Case-insensitive name uniqueness.
  • The Squeek speed-up only grows with more Squeeks or more work and never passes 30%.
  • Travel time is symmetric, and slower units never arrive sooner.

test/WarInvariants.t.sol: random sequences across three players covering raids between villages, scouting, clan support, recalls, players leaving and rejoining clans, peace shields, checkpoints and claims. After every step it snapshots all three villages and checks that:

• a battle takes from the defender exactly the loot it reports, never from the Vault;
• returning loot is credited up to the storage cap, and no uninvolved village changes;
• SEED never moves between villages, and total SEED always equals minted minus burned;
• no target receives more than 3 raid arrivals a day from the same attacker;
• stock stays within storage and Walls never exceed their built level;
• troop room, the champion's away flag and support lists stay consistent;
• clan membership stays consistent and no contract holds ETH.

With throwaway probes I confirmed that random runs really do reach decisive village raids, loot coming home and stationed support, so these checks aren't passing on empty cases. A scripted test in the same file also checks the harness itself.

.imd-findings.json holds two info findings. Both are questions about what the brief means, not confirmed bugs, so neither has a failing proof:

1. Build speed: Town Hall and Squeek reductions stack to −48.9% (buildDuration(10000, 10, 32, 11000) returns 5110). The "never passes −30%" requirement holds only for the Squeek part. My tests check the Squeek-only reading.
2. Raid limit: the 3-raids-a-day limit is counted per attacker and target, not per target. So N attackers can each land 3 raids on the same target, or the same camp, in one day.

I also checked the live Sepolia SqueekCore: state() returns the 256-byte, 8-word layout the ledger expects, so that external read is fine.

The review is complete. The findings file is written and verified, and git shows no tracked changes beyond the findings file and my scratch tests, which are both permitted outputs.

Outcome. I kept 8 of the 14 specialist findings after merging duplicates and reproducing each against the code. Three are medium and carry a Foundry proof that fails on the current tree. No critical or high defects exist: the game holds no funds, and nothing moves SEED or resources between villages except loot.

Findings written to .imd-findings.json

1. Medium, Army._losses rounding. Per-stack ceiling kills one unit of every nonempty defending stack on any nonzero attack. A single Spearman worth 180 destroys a lone Charger and Catapult worth 1,440 and farms attack points. The attached specialist proof fails as stated.
2. Medium, open clan membership. Any Clan Hall 1 village joins any clan uninvited, which cancels the clan's in-flight raids at arrival and grants immunity nobody can revoke. The founder cannot kick or leave. I merged the economics and permissions reports and the separate founder-lock finding into this one root cause. I rewrote the proof so it passes with any consent-based admission fix rather than demanding one specific revert.
3. Medium, Core counter decrease. A lower cumulativeWork reading reverts every checkpoint and every new founding, and a same-address repoint does not rebaseline. Four specialists reported this. My own proof shows the owner's only repair power leaves the ledger stuck.
4. Low, peace shield. Buying it during a longer shield burns 4,000 SEED and consumes the cooldown with no effect.
5. Low, README owner literal. README line 32 names a wallet absent from the brief. The accepted launch.json correctly uses $owner, so I downgraded this from the specialist's medium.
6. Low, checkpoint timing. The raw Core delta between two permissionless calls drives the next day's Wheelhouse bonus and build factor. The code matches the brief's literal formula, so this is a formula weakness.
7. Info, raid limit per pair. A documented interpretation of ambiguous wording.
8. Info, Town Hall and Squeek stacking to -48.9%. The -30% bound holds for the Squeek component alone.

Dropped or merged. Nothing failed to reproduce. The six remaining specialist entries were duplicates of findings 2, 3 and 7.

Checks beyond the specialists. The live Sepolia Core returns the eight-word layout with cumulativeWork 84,732, so the dependency is compatible today. Runtime sizes are under the limit, the manifest is schema-valid with arguments in declaration order, and all five ABI exports exist. My own pass over the entry points found nothing further. One warning for whoever runs tests here: with via_ir, a cached block.timestamp local drifts after vm.warp, so use vm.getBlockTimestamp as the project's own tests do.

Coverage. All 46 listed entry points are answered, plus rows for the manifest and the live dependency. Thirty-three hold, thirteen point to findings 1 through 4, none are unreached.

All three medium findings reproduced and are fixed, but one of the three proof tests still fails, on a line I've disputed. If the reviewer doesn't accept that dispute, the verifier will reject the result.

forge build and forge fmt --check pass. forge test with the verifier's seed passes all 87 project tests, including the invariant group and six fuzz tests. ABIs are regenerated and match the build. Army's runtime is 23,644 bytes, under the 24,576 limit.

Fixed:

• Casualties killing whole small stacks (src/Army.sol): each unit type now loses its rounded-down share, and the army's total is rounded up once. The extra units come from the types with the largest leftover fractions. In the reviewer's example the raid now kills one Shieldbearer, and the lone Charger and Catapult survive. Its proof passes, and the existing single-stack fuzz test still matches exactly.
• Joining a clan uninvited (src/Clans.sol, src/Villages.sol): joining now needs an invitation from the clan's founder, through the new Villages.inviteToClan(wallet, open); passing false withdraws it. An invitation is used up on joining, so a member who leaves needs a new one. A raid target can no longer join the attacker's clan to cancel the raid.
• Ledger stuck after the Core counter goes backwards (src/SeedLedger.sol): one 72-hour repoint to the same Core now resets the baseline when the counter reads lower, so checkpoints and founding work again. If the counter went up instead, the baseline stays and earned work isn't lost. Its proof passes.
• Peace shield charging for nothing (advisory): the purchase is now refused, with no SEED burned and no cooldown, while a longer shield is running.
• README owner line (advisory): the README no longer names a wallet address; it tells the manifest step to write $owner.

Disputed:

• The clan proof's last line. It sends the same 8 Spearmen at Bob a second time. That first raid isn't decisive (attack 320 against defense 212), and by the brief's rule "each side loses min(1, 0.5 × enemy/own)" Alice loses 3 Spearmen. Only 5 come home, so the second send fails with "Insufficient troops". The original code loses the same 3. Everything the proof is actually checking now passes: the raid is fought, and with her 5 survivors Alice can raid Bob again.
• Three other advisories, left as they were: the checkpoint timing gap follows the brief's formula, raid limits stay per attacker and target as documented, and the 30% cap applies to the Squeek reduction only. Each has its reasoning in the responses file.

I added tests for each fix and updated README, ECONOMY.md, ABI.md and VALIDATION.md. My answers to all eight findings are in .imd-responses.json.

I updated launch.json. Since my last round, accepted work changed the source of Army, Clans, SeedLedger and Villages. None of those changes touched a constructor, so the contract list, their order and every constructor argument are still correct and stay as they were:

Only change: one phrase in notes. "Clans tracks membership and ranking counters" now reads "Clans tracks founder-invited membership, support eligibility and ranking counters", to match the clan invitations added in the new Clans source. It's the only line in the diff.

Checks:

• The file has only kind, contracts and notes. Notes are 990 characters, contract names are unique, and every reference points to an earlier contract.
• SeedLedger is the only contract with an owner, and that owner is $owner. No contract takes msg.sender or tx.origin as owner.
• forge test with the required fuzz seed: all 87 tests passed.
• I also ran a throwaway test that deploys the five contracts in manifest order, from an address standing in for the factory. Every constructor succeeded, and SeedLedger's owner came out as the launch owner 0xd3e4…b2ee.

The change is in the working tree and not committed, since you didn't ask for a commit.

I updated my test suite for the revised implementation. forge test now passes with the verifier's fuzz seed: all 118 tests across 15 suites, including both invariant suites.

What broke. After my last round, the implementation changed in two ways that broke 3 of my tests:

• Clans are now invite-only. WarInvariantTest's setup and testJoinMissingOrFullClan failed with "Not invited".
• A peace shield can't be bought while a longer shield is still running. testTreasuryRejectionsAndExactSeedBurns expected an insufficient-SEED error, but now gets "Shield already active" first.

What I changed. Only test/EdgeCases.t.sol and test/WarInvariants.t.sol; the rest of last round's accepted tests are untouched.

• Treasury test: a peace shield bought during the 7-day founding shield is now refused without spending SEED. Once that shield expires, the old insufficient-SEED failure is checked again.
• Clan join test: now covers every rejection on the join path:
  • joining without an invitation is refused;
  • only the founder can invite, and inviting the zero address is refused;
  • a cancelled invitation doesn't let anyone in;
  • an invitation is used up when the player joins;
  • after leaving, a player needs a fresh invitation to rejoin.
• New test, testPeaceShieldExtendsOnlyAnExpiredOrShorterShieldAndRespectsCooldown: a shield costs exactly 4,000 SEED and lasts 12 hours. A second purchase is refused at 1 second short of the 3-day cooldown and goes through at exactly 3 days, and the SEED burned is checked.
• War invariants: setup now invites Bob before he joins. I added a random-call step where either the founder or a non-founder tries to invite or cancel an invitation. The join/leave step now flags any join that succeeds without an invitation, or that leaves the invitation unused. In the run, both steps were called about 190 times with no violations.

The other change, rounding troop losses once per army instead of once per unit type, passed my existing tests without edits.

I found no new defects, so I didn't write .imd-findings.json.

This round I have no findings to report. All three medium findings are fixed, and I'm not raising anything new. .imd-findings.json has "findings": [] and a coverage record that marks all 48 entry points as holds. I made no changes to the code, and I deleted the scratch tests after running them.

Medium findings:

• 8d8e2e0a (casualties rounded up per unit stack): fixed. The math audit's copy of the same proof (Proof_e5e2bdd8457f) also passes. Army._casualties (src/Army.sol:506) now rounds down for each unit type and rounds up only once, for the army as a whole, giving the leftover units to the types with the largest remainders. Each type loses at most one unit more than its rounded-down share, and nothing underflows. In the proof's scenario the defender now loses one Shieldbearer, and the Charger and Catapult survive.
• 91744504 (anyone can join any clan uninvited): fixed, and the author is right about the proof. Joining now needs an invitation, which is used up on joining (src/Clans.sol:111-112). Only the clan's founder can invite (Clans.invite, reached through Villages.inviteToClan). The original proof still fails, but only on its last line, with "Insufficient troops": the raid is fought and Alice loses 3 of her 8 Spearmen, as the brief's casualty rule requires. I ran a copy that sends the 5 survivors instead, and it passes: the raid is not cancelled, attack is 320, Alice and Bob are not clanmates, and the follow-up raid departs. The permissions audit's version of this proof (Proof_336b4e4bd641) passes as it is. Invitations to a dissolved clan can't be used, because joining requires a live founder and clan ids are never reused.
• 4ee335fe (a lower Core work counter blocks checkpoints and founding): fixed. The proof passes. applyRepoint (src/SeedLedger.sol:240) now resets the baseline when the Core address changes or when the live counter is below the stored one. Recovery therefore takes one 72-hour repoint, and work not yet checkpointed is kept when the counter only rose.

Advisory findings:

• Peace shield charging while a longer shield runs: fixed. Villages.treasury now checks the shield before burning SEED, and refuses with "Shield already active".

• README naming an owner wallet: fixed. README.md no longer names a literal wallet and says to write $owner. launch.json uses $owner for SeedLedger and lists five contracts in dependency order, with only the schema's three keys.

• Disputed items, dropped:

  • checkpoint timing setting the next day's bonus;
  • the raid limit counting per attacker and target;
  • the 30% build-speed cap applying only to the Squeek reduction.

  The author's answers hold: each follows the brief's wording or a reading the project already documents. Changing them is the requester's decision, not a defect fix, so I'm not reporting them again.

Checks:

• The full project test suite passes. It now includes the author's new tests for clans, casualty rounding, the repoint and the peace shield.

• Sizes are within the deployment limits:

  Contract	Deployed size (limit 24,576)	Creation code (limit 49,152)
  Army	23,644 bytes	24,132 bytes
  Villages	20,583 bytes	21,231 bytes

• I traced the Slither leads in the changed code and none of them is a defect. The "uninitialized" variables in _casualties are memory or local variables that start at zero. The "reentrancy" calls only go to the project's own contracts or are read-only calls.