Piik/CONTRIBUTING.md

Contributing

Lean Workflow

This is the default for an ordinary scoped implementation or bug fix.

1. Start from the canonical repository root on a clean, current main; preserve unrelated user work.
2. Inspect the affected code, current owner, and reachable evidence. Research primary sources only when the issue is non-trivial or component behavior is uncertain.
3. Make the smallest coherent change under the repo-tracked ponytail skill.
4. Run the focused tests or checks that exercise the changed behavior, inspect the pending diff, stage requested files, and report the result and evidence.

Do not automatically create a truth checkpoint, edit status/memory, run npm run check, request independent reviews, open or merge a pull request, deploy, or clean branches/worktrees for every small change. Do not record ordinary UI details, self-evident implementation, one-off fixes, routine test output, or completed history in long-lived truth documents.

Full Integration And Release Workflow

Use this path only when the owner explicitly requests it or when closing a major phase or changing a public contract, route/security model, infrastructure, persistent/irreversible state, or release boundary.

main is intentionally low-frequency. It is not a staging branch: all intermediate implementation, experiments, evidence collection, release notes, and cleanup stay in branches/worktrees. One complete, user-accepted phase lands through one squash PR after its related checks and acceptance are finished; leave main alone until the next material phase. Only a user-authorized P0/P1 emergency may use a separate PR, and that PR must still contain one coherent fix.

1. Create one short-lived branch/worktree from exact canonical main, following the branch naming convention.
2. Update only the single durable owner for changed semantics and any materially changed current snapshot. If semantics remain disputed, record a hold and stop dependent work.
3. Implement and run repository hygiene, npm run check, the relevant browser/network gates, and review in proportion to the whole acceptance boundary.
4. Keep accepted truth checkpoints and dependent candidates on branches until the phase is complete. Rebase or rebuild a retained candidate from exact main only when starting a new phase, preserving main's owning truth on conflicts and transplanting only approved scoped code, tests, and new facts.
5. Open one pull request for the complete phase, resolve required review/checks, squash-merge it once, deploy that merged revision when authorized, perform scoped postflight, then audit references and reparse safety before cleanup.

One coherent phase should leave one meaningful squash commit on main. Include its source, tests, owned semantic documentation, and materially changed status snapshot in that boundary. Do not open a follow-up pull request whose only purpose is to copy the deployed revision, asset name, or artifact hashes into the repository. Exact deployment identity belongs to the immutable release descriptor, runtime REVISION, and deployment record. Preserve separate commits only when they carry independently useful history.

Update main through PRs only; branch checkpoints and generated release metadata do not bypass that boundary. Never force-push shared branches or rewrite shared history without explicit approval.

For deployment work, a routine application-only release verifies a new immutable artifact, switches to it atomically, and guarantees the pre-cutover application release only through bounded health and postflight checks; it has no retention contract afterward and is not a maintained backup. Define recovery only for the infrastructure, configuration, secrets, persistent state, or irreversible surfaces the task actually touches, before changing them.

Use the version/compatibility policy to classify release changes. An incompatible signaling cutover forces old pages to reload and ends Browser capture; follow the public compatibility promise and include that interruption in the accepted cutover. Compatible UI/internal work does not require a wire bump.

Clean up worktrees and branches only after semantic review and integration are complete and the normal merged-head, open-reference, clean-tree, and non-following link checks pass. Never merge an old branch wholesale after a newer truth checkpoint.

Research Standard

The engineering reference owns module and interface discipline, including the post-change ablation pass.

Follow the naming convention for product copy, commands, packages and code ownership. Keep display names separate from stable protocol identifiers; use normal language-specific identifier conventions.

• Prefer specifications, official product documentation, primary source code, maintainers' design notes, and original papers.
• Use current community issues and operational reports to identify real compatibility failures, but label anecdotal evidence as such.
• Include a date and direct URLs. Separate verified facts, measurements, assumptions, and recommendations.
• Review licenses before copying implementation code. A useful reference is not automatically a compatible dependency.
• Piik-owned code is MIT-licensed; third-party components retain their own licenses and notices. GPL/AGPL implementation sources remain study-only unless a separate distribution decision accepts their obligations.

Verification Entrypoints

Every retained test must be collected by a documented verification entry point. Confirm runner inclusion when adding or moving a test; a file's presence alone does not establish coverage.

• npm run check owns deterministic Web type-check, unit, and build acceptance.
• npm run check:client owns Go formatting, unit tests, vet, three-platform builds, and the Windows capture compile/probe when run on Windows. The server core is Go, so its acceptance runs here. It builds the Vite client first when that output is missing, because both binaries embed it. CI invokes these same package commands rather than rebuilding their steps in YAML.
• gate:* commands are explicit physical or network acceptance. They must use isolated profiles, bounded deadlines, shared cleanup helpers, and a structured result. A manual diagnostic may locate a failure, but is not retained as pass evidence.
• On Windows, execute Client/Server and Go test binaries only from stable project build paths. Go's temporary compiler/cache files are not firewall identities; do not run network tests with a changing temporary executable path. Keep browser profiles isolated and consider the active firewall when diagnosing connection failures rather than changing global firewall rules.
• CI, versioning and release automation belong to complete, accepted squash merges into main; ordinary branch pushes and PRs stay quiet. The versioning policy owns version selection, publication and activation state. Package the merged SHA without writing version-record commits back to main.

Commit, PR And Branch Names

Use Conventional Commits: type(scope): outcome. Scope is optional. Use feat for new behavior, fix for repairs, or docs, refactor, test, build, ci, and chore for their named purpose. Keep the outcome short and concrete; English is the default, and a Chinese explanation may follow in the body.

The PR title names the complete phase and becomes its single squash commit on main, for example fix(app): restore sharing after a source change. Working commits should follow the same form where useful; no history rewrite is needed just to rename commits that will be squashed. Add ! before the colon for a breaking change, such as feat(protocol)!: replace the join handshake, and explain its effect in the body. The final squash title and body supply release intent; the versioning policy owns version selection and publication behavior.

Name branches <type>/<short-kebab-case-description>, using the same types; reserve spike/ for experiments. No issue number is required. 中文说明：PR 标题 与最终 squash 提交使用上述格式；分支用英文短名，破坏性变更标记 ! 并说明影响。

Pull Request Scope

A pull request should explain the problem, the chosen design, verification performed, user-visible or operational effects, and remaining risks.

Before a product-changing integration PR is accepted, fill its exact ## Release notes section with concise public copy in Chinese and English: user-visible changes, fixes and required upgrade actions. Use ### for subsections. Review this text as product copy; it is published automatically from the squash commit, without PR discussion or verification logs. The release-note policy owns aggregation and preview. Do not add a changelog file or release-note archive. Standalone website, documentation and maintenance phases do not need product release notes; their public description stays in the PR.

Durable semantic or current-snapshot changes must update their single owner in the same integration boundary. Ordinary implementation and bug fixes may be complete with code plus focused evidence.

Local Hooks

Install the tracked Git hooks once per clone:

sh scripts/install-hooks.sh

On native PowerShell, this equivalent is available:

./scripts/install-hooks.ps1

The pre-commit hook runs the POSIX repository hygiene check. The PowerShell entry implements the same checks for native Windows use, and CI runs the POSIX entry. Both read the tracked path manifest in scripts/required-project-paths.txt; changes to checker behavior must update and verify both in the same pull request.