In this track: Build, test and reason
advanced · 4 MIN READ

Document contract assumptions

Make hidden environmental requirements reviewable.

LET’S PICTURE IT

A bridge’s load limit is part of its design, not an optional footnote.

SEE IT FOR YOURSELF
A valid counter call, step by stepStep 1 / 4
A valid counter call, step by stepFunction requestincrement()No argumentsBefore executionstored count0A local teaching example with a defined starting stateIncoming callCheck function dispatchCheck coded conditionsRules passConditions passContinue executionA failed check can revert insteadCalculation0 + 1Result: 1Storage writecount = 1Persists if call succeedsCalculating a local value and storing it are separate stepsPersistent statecount1Later readGetter reports 1No new incrementState, logs and browser display have different roles

This example begins with count zero and a request to call increment(). No real contract is deployed.

Animated local teaching model. No wallet, RPC or live blockchain data. Some labels and hashes are abbreviated for readability.

List supported asset behavior

State whether exact transfer amounts, fixed balances or callbacks are supported. An invariant can be wrong if those assumptions are left implicit.

Name privileged trust

Document upgrade authority, pause controls and oracle administration. Users and reviewers need to know who can change effective behavior.

Specify time and chain context

Record the target fork, timestamp boundaries and cross-chain assumptions where relevant. Do not silently apply one network’s rules to all EVM-like systems.

Connect assumptions to tests

Each assumption should lead to validation, a test fixture or an explicit limitation. A prose promise without an implementation check can leave a real boundary unprotected.

Define the test

assumption → why needed
validation or test → supporting evidence
unsupported case → defined behavior or limitation

Test plans are framework-neutral unless labeled as complete Solidity or JavaScript. Use a local test environment and no real funds.

QUICK CHECK · NO PRESSURE

Should unsupported token behavior be documented?

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