inspector/.github/workflows/codeql.yml at main · modelcontextprotocol/inspector · GitHub

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# CodeQL code scanning, as an advanced-setup workflow (#2545).
#
# Replaces CodeQL DEFAULT setup, which analyzes only the default branch
# (`main`) and PRs into it. We develop on `v2/main` and reach `main` only by
# milestone merge, so under default setup no v2 work was scanned until the
# release PR: the v2.9.0 ReDoS (#2540) surfaced on the milestone-merge PR and
# held the release, when it should have landed on the PR that introduced it.
#
# Same languages (`actions`, `javascript-typescript`) and the same default
# query suite as default setup had; what changes is only which refs run.
#
#   - `push` to `main` and `v2/main` — the baseline each branch's alerts are
#     tracked against.
#   - `pull_request` into `main` and `v2/main` — a finding lands on the PR
#     that introduced it. Runs from the PR's own ref, so this file is live the
#     moment it is on `v2/main`, as `dco.yml` is.
#   - the weekly `schedule`, which GitHub runs from the DEFAULT branch only —
#     so it starts once a milestone merge carries this file to `main`.
#
# ⚠️ Default setup must be OFF (a repository setting — Settings → Code
# security → CodeQL analysis — not a file). GitHub refuses an advanced-setup
# upload while it is on, and with both on the two would double-report.
#
# `security-events: write` is the scope that uploads results — and therefore
# the scope that could suppress them — so `verify:action-pins` counts this job
# as credentialed and every action it runs is SHA-pinned (#2484). Pins are
# resolved with `npm run action:resolve-pin`.
name: CodeQL

on:
  push:
    branches: [main, v2/main]
  pull_request:
    branches: [main, v2/main]
  schedule:
    - cron: "23 16 * * 6" # 16:23 UTC Saturday, default setup's old slot

permissions:
  contents: read

jobs:
  analyze:
    name: Analyze (${{ matrix.language }})
    runs-on: ubuntu-latest
    # A newer push to the same PR or branch supersedes the analysis.
    concurrency:
      group: codeql-${{ github.ref }}-${{ matrix.language }}
      cancel-in-progress: true
    # Observed under default setup over 30 runs (2026-09-02 – 2026-10-17):
    # `actions` ~40s, `javascript-typescript` 1.5–4.7 min. Twice the slowest,
    # rounded up to the next five minutes (#2333).
    timeout-minutes: 10
    permissions:
      contents: read
      security-events: write
    strategy:
      fail-fast: false
      matrix:
        language: [actions, javascript-typescript]

    steps:
      - name: Checkout
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false

      - name: Initialize CodeQL
        uses: github/codeql-action/init@6f2ac81f5cd81fe351a197ba0b00d91d03cd2aee # v4.39.0
        with:
          languages: ${{ matrix.language }}
          # Neither language needs a build; this is what default setup used.
          build-mode: none

      - name: Analyze
        uses: github/codeql-action/analyze@6f2ac81f5cd81fe351a197ba0b00d91d03cd2aee # v4.39.0
        with:
          category: "/language:${{ matrix.language }}"