Request received
The contract names validation, filtering, sorting, escaping, and verification behavior.
FIXED SIMULATION
Playground
A fixed replay of each workflow. Step through it or let it play, and observe what happens at every stage — where it pauses, what it requires from you, and what evidence it leaves behind.
A curated, sanitized snapshot — no agent is running and no repository is modified.
Workflow trace
DEMOFIXED REQUESTCustomer CSV export
Add a customer CSV export with filtering, numeric sorting, input preservation, and focused tests.
FIXED REQUESTCSV export sorts numbers as text
Investigate why exported rows sort "10" before "9". Stay read-only until the repair is authorized.
FIXED REQUESTCache layer for the reporting module
Report generation recomputes everything on each run. Propose a design only — no implementation code.
FIXED REQUESTReview the CSV export branch
Review the branch diff for correctness, safety, and maintainability. Report findings only — do not edit.
FIXED REQUESTEnd-of-session task handoff
Summarize this session so the next one can continue directly. Record facts, not the transcript.
Repository context discovered
The existing customer export module is the owning boundary. No unrelated files need to change.
Implementation boundary recorded
Goal, accepted behavior, out of scope, assumptions, and verification are ready for approval.
Explicit approval required
Production code and tests remain unchanged until the user approves implementation.
This is the point the workflow exists for. No file has been modified up to here.
Focused implementation
Validation, filtering, sorting, and CSV escaping are applied at the existing module boundary.
Fresh evidence collected
Five focused assertions, the package test command, and syntax validation pass.
Requirements reconciled
The durable record reflects actual files and verification. No commit was created.
Bug report received
The report includes a three-row sample that reproduces the wrong order every time.
Root cause located
The comparator reads cell text without numeric conversion, so "10" sorts before "9".
Repair authorization required
Root cause and repair plan are presented. No file changes until the user authorizes.
This is the point the workflow exists for. No file has been modified up to here.
Focused repair
Numeric conversion is added inside the existing comparator only; all other behavior stays untouched.
Regression evidence collected
A new assertion covers numeric ordering, and the original suite still passes.
Design request received
Goal: remove repeated computation. Constraint: report output must stay identical.
Design pressure identified
The real pressure is repeated computation time — not concurrency or memory.
Options compared
Function-level memoization versus query-result caching; the difference is the invalidation strategy.
Design delivered
Query-result caching is recommended for its clear boundary and testability. Assumptions and follow-up checks are recorded.
Review scope fixed
The review target is the diff between the current branch and the main branch.
Dimensions inspected
Requirements, correctness, safety, and evidence are checked one by one.
Finding verified
Escaping misses embedded newlines — confirmed real with a minimal input before reporting.
Report delivered
Three findings ranked by severity, each with cited evidence. The working tree is untouched.
Handoff requested
The record must let a fresh session continue without rereading the conversation.
Status inventoried
Implementation is complete and verified. One unrelated working-tree change belongs to someone else and stays untouched.
Decisions and risks recorded
Key decisions, verification commands, and the unresolved deployment risk are written down.
Handoff ready
The record ends with the next safe action. Nothing is written to disk unless a path is requested.
Evidence snapshot
01 / 05- Requirement checkpoint
- Existing module boundary
- Focused test assertions
- Package test result
- Syntax validation
- Minimal reproduction record
- Root-cause explanation
- Regression assertion
- Full test suite result
- Problem statement
- Option comparison
- Recommendation with assumptions
- Fixed review scope
- Ranked findings (3)
- Defect reproduction input
- Status inventory
- Decisions with evidence
- Next safe action