## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - Chat channels connect shared task workflows to several platforms. > - Recent refactors moved platform behavior into named channel folders. > - Authors and reviewers need a durable rule that preserves these boundaries. > - Review settings also need version control and an explicit source of rules. > - This pull request adds scoped MDC rules and a staged migration of supported Greptile settings into Git. ## Linked Issues or Issue Description **Issue type** Missing documentation and versioned review configuration. **Where is the issue?** Root contributor instructions, chat channel architecture guidance, and Greptile configuration for this repository. **What's wrong?** The channel folder boundary is established in the refactor but has no focused rule for future changes. Greptile settings and custom context are maintained in the dashboard. **Suggested fix** Keep canonical rule bodies under `rules/`. Route coding agents through `AGENTS.md` and load matching rules through `.greptile/files.json`. Preserve supported review settings in `.greptile/config.json` and document the remaining dashboard controls. Related work: #15823 and #16080. A search for related rule PRs found no duplicate configuration change. ## What Changed - Add `rules/chat-channel-platform-boundaries.mdc`. Its scope covers `server/src/services/chat-channels/**` and the sibling `chat-channels.ts` entry point. - Define provider folder ownership, shared workflow boundaries, typed dependencies, behavior-preserving extraction, and dispatch exceptions. - Add rule-loading instructions to root `AGENTS.md` and `.greptile/rules.md`. - Add explicit, scoped context references in `.greptile/files.json`. - Record observed review triggers, the Dependabot exclusion, Base tier, High strictness, summary options, fix prompts, status checks, and disabled auto-approval in `.greptile/config.json`. - Move existing PR-description, source-file growth, and repository-specific screenshot guidance into `rules/pull-request-review.mdc`. - Document supported settings, remaining dashboard controls, and the staged cutover. The dashboard was inspected read-only; no settings or saved rules were changed. ## Verification - Parse both MDC headers with Ruby `YAML.safe_load`: passed. - Parse both Greptile JSON files and verify documented field types and observed values: passed. - Verify all four context references resolve to repository files: passed. - Compare scoped MDC globs with the corresponding Greptile scope: passed. - Check ten positive and negative scope cases with Node `path.matchesGlob`: passed. Includes the service entry point, nested provider files, and unrelated runner, connection, and UI paths. - Verify the scope covers all 101 tracked chat-channel files: passed. - `git diff --check`: passed. - Application typecheck, `pnpm test:run`, and build were not run locally. This change contains only guidance and reviewer configuration, and this worktree has no installed application dependencies. No runtime behavior or application tests changed. - Greptile reviewed commit `32647dfd001289a297b9d43c381371da8575df38`: 5/5, eight files reviewed, zero comments. Hosted CI is still running. ## Risks - Instructions depend on agent and reviewer compliance; these files are not deterministic lint rules. - The new MDC directory is explicitly routed through `AGENTS.md` and Greptile. Cursor does not automatically discover arbitrary `rules/` directories. - This preserves the observed High strictness setting, which the dashboard says omits P2 comments. It does not change that review policy. - Dashboard instructions and custom rules remain additive. Their copies were not disabled during read-only inspection. The repository-specific no-screenshot rule explicitly takes precedence over the conflicting older organization instruction. - Draft review, the required 5/5 status threshold, image badges, and other controls without documented config equivalents remain in the dashboard. See `.greptile/README.md` for the inventory and cutover limitations. ## Model Used OpenAI Codex based on GPT-6. The exact runtime model ID and context-window size are not exposed in this session. Used reasoning, repository inspection, shell validation, official documentation, and read-only browser inspection. ## Checklist - [x] I have included a thinking path that traces from project context to this change - [x] I have specified the model used (with version and capability details) - [x] I have checked ROADMAP.md and confirmed this PR does not duplicate planned core work - [x] I have searched GitHub for duplicate or related PRs and linked them above - [x] I have either (a) linked existing issues with `Fixes: #` / `Closes #` / `Refs #` OR (b) described the issue in-PR following the relevant issue template - [x] I have not referenced internal/instance-local Paperclip issues or links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip` URLs) - [x] My branch name describes the change (e.g. `docs/...`, `fix/...`) and contains no internal Paperclip ticket id or instance-derived details - [x] I have run tests locally and they pass (configuration parsing and scope checks described above; application suites were not run) - [x] I have added or updated tests where applicable (no runtime change; checked configuration directly) - [x] I have updated relevant documentation to reflect my changes - [x] I have considered and documented any risks above - [ ] All Paperclip CI gates are green - [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups - [x] I will address all Greptile and reviewer comments before requesting merge Co-authored-by: Paperclip <noreply@paperclip.ing>
Greptile configuration
This directory tracks the supported review configuration for
paperclipai/paperclip. It was prepared from a read-only dashboard inventory
on 2026-10-13. No dashboard settings or custom context were changed.
config.jsonrecords the observed review settings supported by Greptile's documented file schema.files.jsonloads repository context and scopes architectural rule files.rules.mdexplains how to apply the canonical Markdown rules inrules/.
Settings migrated to Git
| Dashboard setting | Repository configuration |
|---|---|
| Automatic reviews on all events | autoReview: ["open", "push", "rebase"] |
Exclude dependabot[bot]; remaining reviews use Base |
excludeAuthors, effort: "base" |
| High strictness (dashboard says it does not comment on P2s) | strictness: 3 |
| Do not replace the PR description | shouldUpdateDescription: false |
| Include PR summary, confidence score, and findings; no sequence diagram | The four section settings in config.json |
| Summary is not collapsible; default-open option is off | summarySection.collapsible and defaultOpen are false |
| Include a prompt to fix findings | fixWithAI: true |
| Status checks and status comments enabled | statusCheck and statusCommentsEnabled are true |
| Auto-approval disabled; stored risk ceiling is Low | autoApprove.enabled: false, riskCeiling: "low" |
The existing PR-description and 1,000-line growth guidance is in
rules/pull-request-review.mdc. That file also preserves the active,
repository-specific rule not to request UI screenshots. This resolves the
contradiction with the older organization instruction asking for screenshots.
The active dashboard pattern **/[Aa][Gg][Ee][Nn][Tt][Ss].md reported two files:
AGENTS.md and docs/api/agents.md. Both are explicit references in
files.json; the latter remains API context, not contributor policy. Future
context files need explicit manifest entries. The inactive Contribution
guidelines context remains inactive; it is not added as a separate context
file. Rules scoped to other repositories are not copied here.
Settings still managed in Greptile
The following observed controls do not have equivalents in the published
.greptile/ schema used for this migration. They remain dashboard settings:
- Review draft pull requests: enabled.
- Required confidence to pass the status check: 5/5.
- Image badges: enabled.
- Comment header: empty.
- Default coding-agent badges: no agents shown.
Repository enablement, provider authentication, billing, integrations, and learned memory also remain service settings. Auto-approval risk instructions, if used later, are explicitly dashboard-only in Greptile's reference. Do not invent config keys for unsupported controls.
Cutover and maintenance
Greptile reads committed configuration from the reviewed branch. No reindex is required. Local changes alone are not visible to the hosted reviewer.
File-based review settings override dashboard defaults, but dashboard rules and instructions are additive. The existing dashboard copies are still active. This is a staged migration, not a completed dashboard cleanup. After a hosted review verifies the configuration, an authorized maintainer can retire duplicate dashboard context scoped to this repository. Do not remove shared organization instructions while other repositories still depend on them.
Keep each policy's body in rules/; update the files.json scope together with
the rule's MDC frontmatter. The chat-channel rule includes both the directory
and its sibling service entry point. See rules/README.md for authoring steps.
References: configuration and precedence, supported fields and file references.