Versioned security assessment

Report ID: SA-78A3A38E

6/30/2026, 12:37:22 AM

firebase-app-hosting-basics security assessment v2

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
firebase-app-hosting-basics
Version
v2
Maintainer
firebase
Source
github.com/firebase/agent-skills/tree/main/skills/firebase-app-hosting-basics/
Coverage
4 Files scanned · 230 Lines analyzed
Policy version
Unavailable

Highest confirmed finding severity

Medium

2 confirmed security findings require attention.

Installation context

Historical evidence

This report may not describe the currently installable artifact. Open the current Skill page for install guidance.

Open current Skill page

This report does not block or authorize the manifest or ZIP.

Static analysis flagged a critical combination of commands, network references, and secret terms, but review found documentation-only Markdown with no executable code, obfuscation, prompt injection, or data exfiltration. Most static hits are false positives from Markdown backticks, prose, or official Firebase examples. Risk remains medium because the skill guides agents through Firebase CLI commands that can deploy, delete, or change cloud resources and manage secrets.

Report position

Historical report

Open audit history before using this report to install.

Audit attestation

Not attestable

The required immutable binding is incomplete.

Human verification

Not verified

No human verification is recorded for this report.

Coverage

4 Files scanned · 230 Lines analyzed

2 items shown for review

Limitations

This report does not claim runtime or sandbox execution and does not prove the absence of side effects.

Evidence chain

Follow the evidence from source binding to the install contract. Available evidence supports verification; it is not a safety guarantee.

  1. Source

    Binding unavailable

  2. Artifact

    Identity incomplete

  3. Audit

    Complete

  4. Install contract

    Open manifest to verify

    Open manifest

Capabilities observed

Observed means this report recorded supporting evidence. Not recorded does not prove that a capability is absent.

Contains scripts

May execute code included with the Skill.

Not recorded by this audit

Network access

May connect to external services.

Observed in 2 evidence locations

Filesystem access

May read or write local files.

Not recorded by this audit

Env variables

May read values from the process environment.

Observed in 2 evidence locations

External commands

May invoke commands or programs outside the Skill.

Observed in 7 evidence locations

Risk findings

Confirmed security concerns are separated from items that still need review.

Confirmed security concerns (2)

RISK-001 Medium
SKILL.md:47-48references/cli_commands.md:28references/cli_commands.md:54-62
Firebase CLI Commands Can Modify Cloud Resources
The skill documents Firebase CLI commands for deployment, backend deletion, rollout creation, backend creation, and secret access. These are legitimate App Hosting workflows, but they can change or delete Firebase resources if run without clear user approval.
The commands are plainly documented and include deploy, delete, create, and rollout operations. They are legitimate Firebase commands, but the operational impact is real.
RISK-002 Medium
references/cli_commands.md:38-48references/configuration.md:18-27references/emulation.md:5-16
Secret Handling Workflow Requires User Confirmation
The skill includes App Hosting secret commands and examples using API_KEY values. This is expected for Firebase App Hosting, but agents must avoid exposing secret values in logs, commits, prompts, or generated files.
The files clearly describe secret creation and local secret overrides. The guidance is not malicious, but mishandling these workflows could expose credentials.

Expert evidence

Immutable subject identity, scanner metadata, dismissed matches, and source-level evidence.

Artifact subject

Marketplace commit
Unavailable
Content hash
Unavailable
Tree hash
Unavailable
Skill path
Unavailable
Audit payload hash
Unavailable

Analysis metadata

Audit model: codex

Analysis state: Complete

Scope is limited to the recorded files, lines, methods, and evidence. No runtime or sandbox execution is claimed.

Static false positives ignored (3)
Low
SKILL.md:30-31references/cli_commands.md:7references/configuration.md:1-7references/emulation.md:5-8
Markdown Backtick Command Alerts Are Mostly False Positives
The static analyzer labeled many Markdown backtick snippets as Ruby or shell backtick execution. The reviewed files contain documentation and fenced examples, not executable Ruby code or dynamic shell evaluation.
The cited locations are Markdown headings, inline code, or fenced examples. No file contains Ruby code, eval behavior, or shell interpolation logic.
Low
references/cli_commands.md:3references/emulation.md:6SKILL.md:3-8
Weak Cryptography Alerts Lack Supporting Evidence
Static analysis reported weak cryptographic algorithm blockers, but the cited lines are prose or configuration guidance. No evidence found of MD5, SHA1, insecure cipher use, or custom cryptography in the reviewed files.
The cited lines do not contain cryptographic APIs or algorithm names. They describe Firebase App Hosting and local emulator configuration.
Low
SKILL.md:11references/configuration.md:50
Network Findings Are Documentation References
The hardcoded URL points to the official Firebase Console billing page, and the configuration line flagged as network access is an environment availability value. No evidence found of outbound HTTP requests or data transmission code.
The only real URL is an official Firebase Console link for plan setup. The other cited line is the word RUNTIME in a YAML example, not a Python HTTP library.

Verify and export

JSON report CITATION.cff SARIF 2.1.0 Signed installation manifest

The manifest and lockfile bind install artifacts to cryptographic hashes. This integrity claim is separate from the security assessment.

Audit attestation: not_attestable