remote-logs

A guide for retrieving build and runtime logs from a deployed app backend. Build logs show deployment steps, while runtime logs show the running server's output and errors.

In plain words
What is it for?
Use it to inspect failed or ongoing deployments and to view recent logs from a deployed backend. Local-only apps should use a different debugging guide.
Why use it?
It separates cloud deployment problems from local development logs, making it easier to investigate the right system. It applies only to apps that have a backend folder.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/fusebase-dev/fusebase-flow/remote-logs
Any agent
npx skills add fusebase-dev/fusebase-flow --skill remote-logs
Clone the repo
git clone --depth 1 https://github.com/fusebase-dev/fusebase-flow

Made for: Claude Code, Codex.

Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,121 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00056 $0.01121
Opus 5 $0.00028 $0.00561
Sonnet 5 $0.00011 $0.00224
Haiku 4.5 $0.00006 $0.00112

Measured 2d ago against content hash 551abc90796d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

remote-logs scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/remote-logs/SKILL.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Remote Logs

This skill applies only to apps with a backend/ folder. Frontend-only apps do not produce remote logs.

When an app backend has been deployed using fusebase deploy, you can fetch logs from the cloud:

  1. Build logs - Output from the container image build process
  2. Runtime logs - Live stdout/stderr and system logs from the running backend

Important Distinction

Context Command What It Reads
Local development fusebase dev start Log files in <app>/logs/dev-*/
Deployed backend fusebase remote-logs Cloud build and runtime logs

If the app is running locally via fusebase dev start, use the dev-debug-logs skill instead.

Commands

Build Logs

Fetch build/deployment logs from the most recent deploy:

fusebase remote-logs build <appId>

Output includes:

  • Build status (in_progress, failed, finished)
  • Full build log (Dockerfile execution, npm install, etc.)
  • Deploy job ID for reference

Runtime Logs

Fetch live logs from the running backend:

# Default: last 100 console (stdout/stderr) entries
fusebase remote-logs runtime <appId>

# Specify tail count (0-300)
fusebase remote-logs runtime <appId> --tail 200

# Get system logs instead of console logs
fusebase remote-logs runtime <appId> --type system

# Filter to a specific container (backend or sidecar)
fusebase remote-logs runtime <appId> --container api
fusebase remote-logs runtime <appId> --container my-sidecar

Options:

  • --tail <n> - Number of log entries (0-300, default: 100)
  • --type <type> - Log type: console (stdout/stderr) or system (service/infrastructure logs)
  • --container <name> - Filter logs to a specific container. Use api for the main backend, or the sidecar name for sidecar containers

Log Format with Sidecars

When an app backend has sidecar containers, runtime logs include output from all containers. Each log line is prefixed with the container name:

Read the full file on GitHub · 155 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 155 lines · 56 tokens per session scan A 551abc90796d

Subscribe to this mod's changes

remote-logs is a skill published in the GitHub repository fusebase-dev/fusebase-flow (9 stars, last pushed 7d ago), licensed MIT. It adds 56 tokens to every session and 1,121 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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