feat(precompiles): expose module Query rpcs as precompile methods

[codchen]

Motivation

An audit of all rpc defs in service Query (query.proto) and service Msg (tx.proto) under /proto and /sei-cosmos/proto found that many module Query rpcs have no EVM precompile counterpart: bank/distribution were partial, gov was write-only, and auth, authz, evidence, feegrant, mint, params, slashing, and upgrade had no precompile at all.

Changes

Extended existing precompiles (new view methods, head version only)

• bank (+5): spendableBalances, totalSupply (paginated all-denoms; existing supply(denom) unchanged), params, denomMetadata, denomsMetadata
• distribution (+8): params, validatorOutstandingRewards, validatorCommission, validatorSlashes, delegationRewards, delegatorValidators, delegatorWithdrawAddress, communityPool
• gov (+8): proposal, proposals (status/voter/depositor filters), getVote, votes, params (voting+deposit+tallying merged), getDeposit, deposits, tallyResult — getVote(uint64,address) / getDeposit(uint64,address) (named to avoid overloading the tx methods, which breaks ethers.js name resolution)

New query-only precompiles

Precompile	Address	Methods
auth	0x…100D	account, accounts, params, nextAccountNumber
authz	0x…100E	grants, granterGrants, granteeGrants
evidence	0x…100F	evidence, allEvidence
feegrant	0x…1010	allowance, allowances, allowancesByGranter
mint	0x…1012	params, minter
params	0x…1013	params(subspace, key)
slashing	0x…1014	params, signingInfo, signingInfos
upgrade	0x…1015	currentPlan, appliedPlan, upgradedConsensusState, moduleVersions

(0x…1011 is already p256.) Each new precompile follows the oracle-style DynamicGasPrecompile shape with abi.json, a Solidity interface, a versions file (single v6.6 entry), and a generated-style setup.go, so scripts/bump_version manages them going forward.

Plumbing

• 11 narrow querier interfaces (mirroring the existing StakingQuerier pattern) plus Codec() added to precompiles/utils/expected_keepers.go, wired to concrete keepers in app/precompiles.go (mint via mintkeeper.NewQuerier; others implement their gRPC QueryServers directly)
• Conventions follow the staking precompile: Dec/Int → string, times → Unix seconds, durations → seconds, pagination via bytes pageKey + nextKey
• Any-typed response fields (gov proposal content, authz authorizations, evidence, feegrant allowances) are returned as registry-resolved JSON bytes ({"@type": …}), consumable on-chain with the json precompile

Notes for reviewers

• These are consensus-visible additions at the current head version (v6.6). If v6.6 is already live, they should ride the next upgrade tag — the bump_version flow handles archival when the tag is added.
• Account-typed query inputs take EVM address and require address association (consistent with existing bank/staking/distribution precompiles); validator/consensus addresses are bech32 strings.
• precompiles/setup.go registers the new precompiles in GetCustomPrecompiles only (same as solo), not in the legacy InitializePrecompiles global-VM path.

Testing

• go build ./... clean
• go test ./precompiles/... -count=1 — all 22 precompile packages pass, including new tests covering happy paths, pagination, error paths (unassociated address, not-found), and exact packed-output assertions
• go test ./x/evm/keeper/ -run TestGetCustomPrecompiles passes
• go vet clean; all touched files gofmt -s / goimports compliant

🤖 Generated with Claude Code

[github-actions]

The latest Buf updates on your PR. Results from workflow Buf / buf (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Jul 16, 2026, 1:35 PM

[codecov]

Codecov Report

❌ Patch coverage is 67.17305% with 497 lines in your changes missing coverage. Please review.
✅ Project coverage is 59.02%. Comparing base (ad863c7) to head (f45c933).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
precompiles/distribution/distribution.go	54.58%	75 Missing and 29 partials ⚠️
precompiles/gov/gov.go	67.65%	41 Missing and 35 partials ⚠️
precompiles/bank/bank.go	65.80%	30 Missing and 23 partials ⚠️
precompiles/authz/authz.go	66.91%	25 Missing and 20 partials ⚠️
precompiles/feegrant/feegrant.go	64.00%	25 Missing and 20 partials ⚠️
precompiles/auth/auth.go	64.70%	25 Missing and 17 partials ⚠️
precompiles/upgrade/upgrade.go	70.47%	18 Missing and 13 partials ⚠️
precompiles/evidence/evidence.go	67.60%	14 Missing and 9 partials ⚠️
precompiles/slashing/slashing.go	76.04%	14 Missing and 9 partials ⚠️
precompiles/mint/mint.go	73.97%	12 Missing and 7 partials ⚠️
... and 10 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3767      +/-   ##
==========================================
- Coverage   59.88%   59.02%   -0.86%     
==========================================
  Files        2288     2217      -71     
  Lines      190023   181666    -8357     
==========================================
- Hits       113786   107226    -6560     
+ Misses      66091    64903    -1188     
+ Partials    10146     9537     -609     

Flag	Coverage Δ
sei-chain-pr	57.31% <67.17%> (?)
sei-db	70.41% <ø> (ø)
sei-db-state-db	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
app/precompiles.go	100.00% <100.00%> (ø)
precompiles/setup.go	50.90% <100.00%> (+3.85%)	⬆️
precompiles/auth/setup.go	71.42% <71.42%> (ø)
precompiles/authz/setup.go	71.42% <71.42%> (ø)
precompiles/evidence/setup.go	71.42% <71.42%> (ø)
precompiles/feegrant/setup.go	71.42% <71.42%> (ø)
precompiles/mint/setup.go	71.42% <71.42%> (ø)
precompiles/params/setup.go	71.42% <71.42%> (ø)
precompiles/slashing/setup.go	71.42% <71.42%> (ø)
precompiles/upgrade/setup.go	71.42% <71.42%> (ø)
... and 12 more

... and 88 files with indirect coverage changes

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