RedditBot/docs/services.md

Service and module map

This is an ownership map, not an API dump. Read the owning implementation and tests before changing behavior.

Lifecycle and account ownership

Module	Owns	Important constraints
src/bootstrap.ts	Dependency composition and startup wiring	Keep business policy in services; preserve initialization order and test seams.
src/main-loop.ts	Shared discovery/screening/dispatch workers and legacy loop	Loops are abortable; queue transitions and shutdown must remain recoverable.
services/reddit-account-runtime.ts	Immutable account runtime/factory/manager lifecycle	Same-account operations serialize; session refresh replaces one runtime.
services/reddit-account-runtime-builder.ts	Concrete account dependency graph and account loop	Account-specific browser, Matrix, repos, limiter, automation, chat, and media live here.
services/reddit-accounts.ts	Account import/activation orchestration	Verification must bind Reddit cookies and Matrix identity before activation.
services/account-auth-context.ts	Current verified identity snapshot	Account work pauses unless both sides authenticate.
services/session-bound-runtime.ts	Legacy auth-bound background lifecycle	Prevents background work while logged out.

Discovery, preparation, and delivery

Module	Owns	Important constraints
services/monitor.ts	Subreddit ordering, candidate fetching, age/gender/seller screening, rejection summaries	Cheap checks first; preserve exact rejection/deferred counts; listing 404 disables the subreddit.
reddit/api.ts	Reddit JSON calls, post parsing, seller/profile evidence, username resolution, error types	All reads must use the coordinator; redact error metadata.
reddit/request-coordinator.ts	Process-wide Reddit request spacing and cooldown	Space failed requests too; 429 cooldown is global.
services/processor.ts	Source-specific AI preparation and outbound safety	Returns prepared or explicit skip; performs no remote chat send.
services/strategy-selector.ts	Weighted explore/exploit selection and experiment metadata	Separate image/chat strategy sections; respect mature response window and sample floor.
services/recipient-deduplicator.ts	Global recipient history plus live reservation	Case-insensitive; release failures, commit successes, recover stale claims.
utils/rate-limiter.ts	Per-account send spacing/hour limits/jitter	Increment only for confirmed sends; reply priority may use the same limiter.
database/candidate-queue-repository.ts	Durable candidate state machine, leases, retries, counts	Mutations require the expected worker lease; recover expired/interrupted work.

Conversation, chat, and media

Module	Owns	Important constraints
services/chat/service.ts	Matrix conversation sync, cache updates, starts/replies, scoped cooldowns	Room-creation limits pause new outreach without blocking existing-room replies; Matrix acceptance and UI visibility are distinct.
services/chat/matrix/client.ts	Matrix HTTP protocol and error classification	Authentication/rate-limit errors need typed handling.
services/chat/cache.ts	Account-scoped cached conversations and sync state	SQLite is durable; do not share caches across accounts.
services/chat/matrix/username-resolver.ts	Matrix/Reddit identity mapping	Preserve unresolved internal IDs without leaking them in operator text.
services/chat/matrix/token-refresher.ts	Explicit refresh-unavailable behavior	New credentials come from verified extension dumps, not token sniffing.
services/conversation-automation.ts	Reply-first policy, claims, retries, send-time refresh, handoffs, turn budgets	Snapshot policy; claim before send; supersede stale queued work; reconcile pending claims; fail closed.
services/conversation-state.ts	Pure conversation parsing/state/safety helpers	Conversation text is untrusted data; keep prompt boundaries explicit.
services/conversation-boundaries.ts	Sequence-aware media requests, refusals, and full-stop detection	Short ambiguous replies become boundaries only in the matching request context.
services/outbound-message-safety.ts	Final no-proximity/no-meeting rule	This is defense in depth beyond prompts.
services/conversation-outcome*.ts	Response outcome classification/recording	Keep analytics attribution account/message scoped.
services/response-checker.ts	Inbox/performance response checks and successful examples	Non-overlapping; do not confuse chat sync with outcome maturity.
services/media.ts	Download, deduplicate, index, and list private media	Preserve account ownership and authenticated serving.
services/media-sync.ts	Periodic authenticated media sync	Stop while auth is unavailable and on runtime shutdown.

Persistence

Module	Owns
database/client.ts	Database open settings and ordered migrations.
database/repositories.ts	Posts, messages, successes, activity, outbox, states, claims, outcomes, users, recipient history.
database/account-repositories.ts	Verified account records, conversations, sync cursors, and media content.
database/ai-usage-repository.ts	Model request/cost/reliability records.
database/legacy-content-import.ts	One-time ownership of legacy file-backed chat/media data.
config/persistence.ts	Secret-free application configuration in SQLite.

Repositories should expose domain operations rather than raw SQL to callers. Multi-step state transitions belong in SQLite transactions when partial completion would break invariants.

Web and agent surfaces

Module	Owns
web/server.ts	Express lifecycle, middleware order, route registration, static dashboard/media.
web/auth.ts	Dashboard session and bearer-token authorization.
web/context.ts	Narrow route dependency container.
web/routes/*.ts	Focused endpoint families.
web/api-catalog.ts	Operation metadata, OpenAPI, and capability discovery.
web/agent-job-manager.ts	Bounded async sync jobs and job status.
web/events/*	Typed event publication, replay, subscriptions, and Express SSE.
web/log-broadcaster.ts	Recent logs plus legacy/typed stream adapters.
mcp/api-client.ts, mcp/server.ts	HTTP-backed stdio MCP tools.

Authorization is semantic, not just authentication: read and control agent tokens intentionally cannot import sessions, send messages, activate accounts, mutate legacy config, or use debug routes.

Frontend

Area	Owns
apps/dashboard/src/app/	Shell, routing, providers, auth status, notifications, realtime repair.
apps/dashboard/src/api/	HTTP client, schema parsing, query keys/hooks.
apps/dashboard/src/features/	Route-level feature slices.
apps/dashboard/src/components/	Reusable domain-aware UI elements.
packages/api-contracts/	Shared strict transport schemas and inferred types.

Utility boundaries

• utils/logger.ts: Winston creation, child context, and attachable sinks. No production console.log.
• utils/retry.ts: bounded retry behavior for operations that are safe to repeat.
• utils/image.ts: download/MIME/size helpers.
• utils/gender-tag.ts: deterministic self-declared tag parsing.
• utils/fetch-with-timeout.ts: abortable HTTP timeout wrapper.
• utils/json-safe.ts: safe serialization for log/event data.

When a module starts owning two independent reasons to change, extract a narrow collaborator and inject it. Do not solve size alone by moving methods into a generic utility file.