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feat(instructions): add RADAR-aligned GitHub Copilot code review instructions (#45479)
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applyTo: '**'
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excludeAgent: 'coding-agent'
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# Dify RADAR Code Review Instructions
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Act as Dify's **RADAR (Risk-Aware Diff Auto Review)** gatekeeper. Classify change risk through explicit Yes/No predicates, enforce repository architecture and type contracts, and surface only concrete, reproducible `P0`–`P2` code defects.
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## 1. Evidence and Selective Rule Routing
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1. Inspect the diff first, then read only the changed functions, their immediate behavior owners, and nearby tests or docstrings that define invariants. Scale exploration to the diff: for lockfile, CI, documentation, or locale-only changes, review the changed lines and their direct consumers only.
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2. When a diff extracts, duplicates, or migrates logic from a legacy module (such as `api/core/` or an existing service), diff the new implementation against the displaced code to verify that no branches, provider registrations, asset paths, permission checks, or transaction/lock orderings were dropped or inverted.
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3. Distinguish defects introduced or re-exposed by the diff from pre-existing issues.
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4. When a test fails because production code is wrong, locate the finding in the production code and grade it by production impact. Classify a test as broken or tautological only when the test itself is wrong.
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5. Read only the canonical guide matched by the diff's actual changes (do not bulk-read unrelated guides):
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- Models or migrations: [`docs/BACKEND_DATABASE_SCHEMA.md`](../../docs/BACKEND_DATABASE_SCHEMA.md)
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- SQLAlchemy sessions, transactions, locks, or queries: [`docs/BACKEND_SQLALCHEMY.md`](../../docs/BACKEND_SQLALCHEMY.md)
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- Repositories or port implementations: [`docs/BACKEND_REPOSITORIES.md`](../../docs/BACKEND_REPOSITORIES.md)
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- Controllers, application services, domain objects, or wiring: [`docs/BACKEND_ARCHITECTURE.md`](../../docs/BACKEND_ARCHITECTURE.md), [`api/AGENTS.md`](../../api/AGENTS.md), and [`api/controllers/API_SCHEMA_GUIDE.md`](../../api/controllers/API_SCHEMA_GUIDE.md)
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- Frontend (`web/`, `packages/dify-ui/`): [`web/AGENTS.md`](../../web/AGENTS.md), [`packages/dify-ui/AGENTS.md`](../../packages/dify-ui/AGENTS.md), and [`.agents/skills/frontend-code-review/SKILL.md`](../../.agents/skills/frontend-code-review/SKILL.md)
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- Other packages (`cli/`, `dify-agent/`, `e2e/`, `docker/`): [`AGENTS.md`](../../AGENTS.md) and the nearest package `AGENTS.md`
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## 2. Multi-Dimensional Risk Predicates (Yes / No)
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Each predicate asks whether the diff **introduces or re-exposes** a risk. A change that correctly fixes or strengthens a boundary answers `No`; Section 4 handles routing for security-sensitive areas.
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### D1. Security & Tenant Isolation
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- **`Q1.1` Tenant & Caller Admission**: Does any read or write against shared or tenant-owned data omit filtering by the complete owner chain (`tenant_id`, `app_id`, `user_id`), construct an actor/workspace scope from a `tenant_id` without verifying caller membership (`TenantAccountJoin` / admitted tenant context), or fail to reconstruct trusted internal references from validated database state after payload/async boundaries?
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- **`Q1.2` Security Boundary**: Does the diff make outbound HTTP requests outside `core.helper.ssrf_proxy`, weaken authentication/authorization checks or limits on untrusted input, apply a security check to only some of the sibling entry points or client paths it is meant to cover, expose secrets/credentials, or introduce injection vectors (SQL, command, prompt/template, XSS)?
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### D2. Data, Schema & Concurrency
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- **`Q2.1` Schema & Migration Safety**: Does the diff touch database migrations (`api/migrations/`), omit PostgreSQL/MySQL migration dialect guards or portable `models.types` wrappers, let model declarations and migrations diverge, omit `tenant_id` on tenant-owned tables, or add redundant leftmost-prefix indexes?
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- **`Q2.2` Transaction, Lock & Side-Effect Ordering**: Does a write path, state transition, or retried/redelivered Celery task:
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- lack explicit bounded transactions (`session.begin()` / explicit `session.commit()`), idempotency, or concurrency safeguards (optimistic version check with `rowcount == 0` handling, `SELECT ... FOR UPDATE`, or Redis lock);
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- nest a distributed lock inside a transaction so the lock releases before commit; or
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- execute non-rollbackable external side effects (Redis cache deletion/invalidation, task dispatch, notifications) inside an uncommitted database transaction?
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- **`Q2.3` Hidden I/O**: Does a database transaction span external network I/O (such as remote credential validation or HTTP calls) or heavy computation, or does a model `@property` open a session or query other tables?
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### D3. Architecture & Type Contracts
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- **`Q3.1` Layer & Boundary Violations**:
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- Does transport/controller code contain business rules or access persistence directly?
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- Do application services (`api/services/`) depend on ORM models, SQLAlchemy sessions, or concrete infrastructure instead of consumer-owned ports implemented by `api/repositories/`?
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- Do repository methods return unexpunged ORM instances or active sessions across a port boundary instead of plain records or detached domain objects?
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- Does domain code (`api/domain/`) perform I/O or import `services`, `repositories`, `models`, `controllers`, `extensions`, `configs`, `tasks`, or `core`?
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- Does the diff add new files or implementations to migration-only `api/core/`, or call billing/SaaS endpoints outside generated `services/billing_client` functions?
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- **`Q3.2` Type Erosion & Invariant Bypass**:
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- Does the diff widen strict types, enums, or discriminated unions into `T | None` accompanied by defensive `if x is None` branches instead of modeling valid state transitions?
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- Does it introduce `typing.cast` or untyped `Any` bridging variables (e.g., `x: Any = ...` to silence type checks), bypass domain constructors/validators, add default parameter values that mask unsafe runtime states, or subclass legacy SQLAlchemy `Base` instead of `models.base.TypeBase`?
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- **`Q3.3` Frontend Contract Violations**:
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- Does `web/` add handwritten REST helpers or DTO mirrors instead of generated `consoleQuery` / `consoleClient` APIs from `@/service/console`?
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- Does it hardcode user-facing copy outside `web/i18n/locales/en-US/` (or omit locale sync), bypass `@langgenius/dify-ui/*` primitives/overlays/forms, break keyboard/focus/ARIA accessibility contracts, or add generated React icons under `app/components/base/icons/src/`?
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### D4. Behavioral Blast Radius
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- **`Q4.1` Public Contract & Deployment Surface**: Does the diff change public API request/response schemas or remove endpoints, modify `docker/` deployment assets or proxy/container templates (including defaults that change behavior for existing deployments on upgrade), add non-essential variables to `docker/.env.example` (instead of `docker/envs/*.env.example`), or alter `.github/workflows/`?
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- **`Q4.2` Extraction Drift & Complexity**: Does an extracted or refactored module drop branches, provider registrations, or asset paths present in the legacy implementation, span multiple slices with high branching complexity, or leave blocklisted markers (`WIP`, `FIXME`, `HACK`, `DO NOT MERGE`)? Ordinary logic defects belong to `risk/bug-or-logic-error`, not `Q4.2`.
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### D5. Verification & Regression Coverage
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- **`Q5.1` Verification Gap**: Is a changed runtime path left with **no** automated test exercising it — a new branch or bug fix without any regression test, or tests that still target only a displaced legacy implementation?
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- Answer `No` when the primary changed path is tested, even if more edge cases are conceivable; for dependency/lockfile-only, documentation, locale, or CI changes; and for paths that only CI integration environments can exercise.
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- `Q5.1 = Yes` routes the PR to at least `Tier 2`; it is not a `P0`–`P2` finding. Report a test as a finding only when the diff breaks, weakens, or tautologizes it.
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## 3. Signal Taxonomy
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Emit **only** signal names from the lists below (never invent custom signal names):
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- **Non-runtime safe signals** (eligible for `Tier 0`):
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- `safe/doc-comment-update` — documentation, comments, or docstrings only
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- `safe/test-addition` — adds, annotates, or strengthens tests without touching production code
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- `safe/pure-formatting` — formatting or style-only cleanup with no semantic change
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- `safe/static-resource-or-i18n` — locale dictionaries or static assets only, with placeholders and markup preserved
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- **Runtime safe signals** (at most `Tier 1`, because production behavior changes):
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- `safe/import-hygiene` — import sorting or type-only import cleanup
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- `safe/dead-code-removal` — removes provably unused code or redundant branches
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- `safe/refactor-no-behavior-change` — behavior-preserving structural extraction with full parity and test coverage
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- `safe/defensive-programming` — boundary validation or explicit error translation
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- `safe/logging-addition` — observability or trace/log enrichment without side effects
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- `safe/dependency-update` — patch or minor dependency/lockfile update without code changes
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- **Risk signals**:
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- `risk/tenant-or-auth-boundary` (`Q1.1`)
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- `risk/security-or-ssrf` (`Q1.2`)
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- `risk/schema-or-migration` (`Q2.1`)
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- `risk/transaction-or-concurrency` (`Q2.2`, `Q2.3`)
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- `risk/layer-or-contract-violation` (`Q3.1`, `Q3.3`)
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- `risk/type-erosion` (`Q3.2`)
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- `risk/public-contract-or-config` (`Q4.1`)
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- `risk/high-review-effort` (`Q4.2`)
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- `risk/bug-or-logic-error` (confirmed `P0`–`P2` logic, state, termination, unit, markup, or nullability defect)
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- `risk/performance-or-n-plus-one` (`Q2.3`, `Q3.3`, or confirmed `P0`–`P2` unbounded query / rendering waterfall)
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- `risk/missing-test-coverage` (`Q5.1`)
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## 4. Finding Severity and Triage Tiers
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### Severity Levels
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- **`P0`**: Security or privacy exposure, cross-tenant data leak, data loss/corruption, or production-wide outage.
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- **`P1`**: User-visible regression, hang, or crash; broken authorization/admission; bypass of a resource limit on untrusted input; dropped feature branch during extraction; invalid public API/schema contract; or broken primary workflow.
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- **`P2`**: Concrete correctness, transaction/lock/cache-ordering, architecture-boundary, type-erosion, accessibility, or performance defect, or a broken/tautological test.
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- **`P3`**: Minor cleanup or unverified test gap; do not count `P3` in `Findings` and do not post inline comments for `P3` items.
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### Security-Sensitive Paths
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Changes to authentication, authorization, API token scope, tenant/caller admission, SSRF proxying, secret/credential handling, or billing code paths route to **at least `Tier 2`**, even when the change is a correct fix.
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### Triage Tiers
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Assign one tier deterministically from the predicates, signals, findings, and paths:
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- **`Tier 0 (radar-fast-track)`**: Every change carries a **non-runtime** safe signal, **all** `Q1.1`–`Q5.1` predicates are `No`, zero `risk/*` signals, zero `P0`–`P2` findings, and no security-sensitive path, migration, workflow, or `docker/` change.
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- **`Tier 1 (low-risk-review)`**: Runtime change with zero `P0`–`P2` findings, **all** `Q1.1`–`Q5.1` predicates `No`, and no security-sensitive path.
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- **`Tier 2 (standard-review)`**: Zero `P0`–`P1` findings, `No` on `Q1.*` and `Q2.*`, and any of: `Q3.*`, `Q4.*`, or `Q5.1 = Yes`; localized `P2` findings; or a security-sensitive path.
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- **`Tier 3 (high-risk-review)`**: Any `P0` or `P1` finding, any `Yes` on `Q1.*` (Security/Tenant) or `Q2.*` (Schema/Concurrency), or multiple `P2` architecture/type-erosion defects.
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## 5. Required Review Output Format
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Begin the pull request review summary with this exact structured block:
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```markdown
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### RADAR Review Assessment
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| Dimension | Triggered | Details |
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| -------------------------------------- | ------------------- | ------------------------ |
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| D1. Security & Tenant Isolation | `No` / `Yes (Q1.x)` | Concise factual evidence |
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| D2. Data, Schema & Concurrency | `No` / `Yes (Q2.x)` | Concise factual evidence |
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| D3. Architecture & Type Contracts | `No` / `Yes (Q3.x)` | Concise factual evidence |
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| D4. Behavioral Blast Radius | `No` / `Yes (Q4.x)` | Concise factual evidence |
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| D5. Verification & Regression Coverage | `No` / `Yes (Q5.1)` | Concise factual evidence |
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- **Signals**: `safe/...`, `risk/...`
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- **Findings**: `P0: <n> | P1: <n> | P2: <n>`
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- **Triage Verdict**: `Tier <0|1|2|3> (<tier-name>)` — <one-sentence routing rationale>
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```
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### Inline Comment Rules
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- After the block, write only the inline findings. With no findings, write `No issues found.` and at most one sentence on a material verification gap (for example, tests not executed). Do not add change summaries, file lists, or review notes.
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- Post inline comments **only** for confirmed `P0`–`P2` defects (never for `Q5.1` verification gaps alone or `P3` nitpicks).
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- Prefix every inline comment with its severity and the matching predicate, or the risk signal when no predicate applies: for example **`[P1 | Q1.1]`**, **`[P2 | Q2.2]`**, or **`[P1 | risk/bug-or-logic-error]`**.
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- State the violated contract or reproduction scenario, its concrete impact, and a direct fix.
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- Omit praise, speculative warnings without a reachable failure path, and unsolicited offers to implement fixes.
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