Insforge Debug

InsForge Debug

Diagnose problems in InsForge projects by combining the backend's observability primitives — logs, metrics, db-health, advisor, policies, metadata, error objects, deploy state, and AI assist. This skill provides:

1. A reference per debug primitive (one observability surface each — under references/)
2. Symptom Recipes (below) that name the primitive sequence for known reactive symptoms and proactive audits

Always use npx -y @insforge/cli — never install the CLI globally.

Fastest Path: AI-Assisted Triage

When the user gives a concrete description (error message, failing URL, HTTP status), hand it to the InsForge debug agent. Unlike the other primitives, this one returns suggestions, not just observations — verify the diagnosis against the primitives it cites before acting on it.

npx -y @insforge/cli diagnose --ai "<issue description>"

See references/ai-assisted.md for when to use this first vs when to skip, and how to verify the output.

Debug Primitives

Each primitive is one independently-queryable observability surface backed by a distinct underlying data source. Real diagnoses are compositions of primitives.

All commands run via npx -y @insforge/cli .... The (command) shown next to each primitive is the actual CLI command — primitive names are concept labels, not CLI subcommand names (e.g., "DB health" is diagnose db, not diagnose db-health; "Policies" is db policies, not diagnose policies).

Symptom Recipes

Each recipe is a primitive call sequence with one-line "look for X" at each step. Command syntax, flags, and deep interpretation are in the per-primitive references above.

Recipe: SDK returned { data: null, error: { code, message } }

1. error-objects — read code/message/details. If code starts with PGRST*, route by prefix using the table in the reference.
2. logs (matching source per error-objects routing) — find the error timestamp, get the full backend-side context.
3. db-health (connections, locks, slow-queries) — only if the error suggests DB issue (PostgREST timeout, lock conflict).

Recipe: HTTP 4xx/5xx response on a specific request

1. error-objects — use the HTTP status routing table to pick the log source (each status has a distinct path; 429 is special).
2. logs (right source for that status) — find the failing request line and error.
3. metrics — only for 5xx patterns spanning multiple endpoints, to confirm system-wide load issue.

Recipe: RLS access issue (403 on write, or empty result on read)

Same bug, two surfacings. Writes (INSERT / UPDATE / DELETE) fail loudly with 403. Reads (SELECT) fail silently with an empty array — PostgREST filters denied rows out instead of returning 403, so the request looks successful with zero rows. Diagnosis path is the same except step 1 only applies to the 403 variant.

1. logs (postgREST.logs) — 403 variant only: find the policy violation event with table and role context. Empty-result variant: skip — no error is logged for silently-filtered rows.
2. policies — list policies for that table; walk USING / WITH CHECK against the actual request and the JWT claim used.
3. metadata — verify auth config (which claim feeds auth.uid() / requesting_user_id(); for third-party auth like Clerk/Auth0, is the provider registered as a JWT issuer?).
4. db query (db query "<sql>") — empty-result variant only: confirm rows that should be visible actually exist by querying as service role (not as the user): npx -y @insforge/cli db query "SELECT id, user_id FROM <table>". Distinguishes "RLS filtered everything" from "no matching data exists".

Recipe: Login fails / OAuth callback errors / token expired

1. logs (insforge.logs) — find auth errors with timestamp and provider context.
2. metadata — verify the provider is enabled, redirect URLs match the callback URL exactly (protocol + host + path).

Recipe: Edge function runtime error / timeout

1. logs (function.logs) — get the error stack and execution context.
2. metadata — confirm the function exists and status: "active".
3. (If needed) npx -y @insforge/cli functions code <slug> — inspect the source for obvious issues.

Recipe: functions deploy failed

1. deploy-state (function-deploy.logs) — find the build/push error.
2. metadata — confirm whether the function ended up in the active list (partial-deploy detection).

Recipe: deployments deploy failed (Vercel)

1. deploy-state (deployments list + status <id> --json) — read status, metadata.webhookEventType, and envVarKeys.
2. Local npm run build — reproduce the same error locally for faster iteration.

Recipe: Single slow query / one endpoint slow

1. logs (postgres.logs) — find the query text and timestamp.
2. db-health (slow-queries, index-usage) — slow-queries only catches it while still running (>5s snapshot); check index-usage for a missing index. Already finished? advisor (--category performance --json) has the pg_stat_statements text + mean time; step 1 has the timestamp.
3. policies — if it's an RLS-gated table, verify the policy isn't adding hidden joins.

Recipe: "Memory is at ~80% but nothing is slow"

1. Expected — say so first. A dedicated Postgres instance turns idle RAM into shared buffers and page cache; steady high memory with little traffic is its healthy state, not a leak (references/metrics.md, "Memory: high is normal").
2. metrics (--range 24h) — only a rising trend or OOM kills/restarts change the answer. OOM evidence lives in postgres.logs as the crash-recovery aftermath ("terminating connection because of crash of another server process" / "automatic recovery in progress").
3. With OOM evidence, the fix is headroom: upgrade to a paid plan and pick a larger instance size (dashboard → Project Settings → Compute & Disk). OOM on the smallest instances under real load is common and expected — never "restart to free memory".

Recipe: All responses slow / high CPU/memory (active incident)

1. metrics (--range 1h) — confirm system-wide pressure (CPU / memory / disk).
2. db-health — DB is the most common bottleneck; check connections, locks, slow-queries.
3. logs (diagnose logs aggregate) — error patterns across sources at the spike timestamp.
4. advisor (--severity critical) — pre-existing known issues that may explain the degradation.