gaia-config-tool

name	gaia-config-tool
description	Edit the tools section of project-config.yaml — section-scoped editor that preserves YAML comments and formatting. Use when "edit tools config" or /gaia-config-tool.
argument-hint	[--category <sast|secret-scan|dep-audit|...>] [--provider <name>]
allowed-tools	["Read","Grep","Bash","Write","Edit"]
orchestration_class	light-procedural

Setup

!${CLAUDE_PLUGIN_ROOT}/scripts/yolo-mode.sh is_yolo >/dev/null 2>&1 || true

Mission

You are editing the tools top-level section of project-config.yaml. The skill is one of the /gaia-config-* editors, each scoped to a single declared section of schemas/project-config.schema.json. The tools section maps tool categories (sast, secret-scan, dep-audit, etc.) to provider+config selections.

Tiered placement (blocking gate + scheduled deep-scans)

A category's provider is the blocking PR-gate scanner — a fast, low-false-positive scanner that gates every PR. A category MAY additionally declare one or more non-blocking scheduled deep-scan scanners for the enterprise defense-in-depth model (heavier/noisier scanners run on a schedule rather than blocking PRs):

# project-config.yaml — under the top-level tools: section
  sast:
    provider: semgrep                 # blocking PR gate (default placement: ci-pre-merge)
    scheduled:                        # non-blocking deep scans (default placement: ci-post-merge)
      - sonarqube                     #   bare provider name, OR
      - { provider: codeql, placement: ci-post-merge }
  sca:
    provider: grype
    scheduled: [owasp-dependency-check]

• placement (on the entry or a scheduled[] object) uses the testPlacement enum (ci-pre-merge/ci-post-merge/…), mirroring the test_execution.tier_*.placement model. The gate provider defaults to ci-pre-merge (blocking); a scheduled[] entry defaults to ci-post-merge (non-blocking).
• Back-compat: a bare provider: <x> with no scheduled/placement keeps the unchanged single-blocking-gate behavior.
• Resolve a category's tiered placement (gate + scheduled scanners, each with its pipeline stage) via ${CLAUDE_PLUGIN_ROOT}/scripts/scanner-placement.sh --config <path> --category <name>.
• Not to be confused with brownfield.scanner_tier: that is a DIFFERENT, orthogonal axis — scanner_tier ('0'|'1'|'2'|'auto') caps HOW DEEP the brownfield deterministic-tools battery goes (a capability cap), whereas tools.<category>.placement controls WHERE in the pipeline a scanner runs (blocking gate vs scheduled deep-scan). They are independent and do not conflict.

Reserved key: tools.aggregation

aggregation is a reserved key under tools, NOT a scanner category. It holds the pipeline-wide SARIF-merge / dedup / DefectDojo export settings (sarif_merge_enabled, dedup_enabled, defectdojo_enabled, defectdojo_api_url, defectdojo_api_token, defectdojo_engagement_id). Because it is reserved, aggregation is NOT a valid <category> for /gaia-config-tool --category — a request to configure it as a scanner category is rejected by the orphan-rejection guard (it is not in the adapter-category set). defectdojo_api_token holds the NAME of an env var, never a literal secret. Edit this block as the tools.aggregation.<key> map directly; see the security-review skill for how the standard gate consumes it.

Editing is comment-preserving: pre-existing comments and formatting OUTSIDE the edited section are preserved byte-for-byte; the edited section's content follows the existing indentation style detected from the file.

Critical Rules

• Only the tools section may be modified. All other sections, all comments, and all formatting outside the edited section MUST be preserved byte-for-byte.
• The comment-preserving YAML editor lives in plugins/gaia/scripts/config-yaml-editor.sh. Do NOT round-trip the file through a generic YAML serializer.
• provider values MUST resolve to a built-in or registered adapter — verify against ${CLAUDE_PLUGIN_ROOT}/scripts/list-adapters.sh output where possible.
• Orphan-rejection (config-skill author convention). If the user supplies a <category> that is not in the canonical adapter-category set, reject with exit 1 and the canonical error message: category '<category>' is not a known adapter category — see /gaia-list-tools for available categories. The canonical set is the union of (a) categories emitted by ${CLAUDE_PLUGIN_ROOT}/scripts/list-adapters.sh (currently a11y-scanner | dast | dep-audit | deploy | e2e-runner | formatter | linter | mobile-static | perf-tool | sast | secret-scan) and (b) the prose-only category test_runner — consumed by /gaia-test-run (line 47 of its SKILL.md and line 87 of run-tests.sh) to look up tools.test_runner.provider for unit-test runner selection (vitest, pytest, bats, go). test_runner has no scripts/adapters/ entry by design — runner invocation is direct, not adapter-mediated — but the category must be acceptable to /gaia-config-tool so users can configure it. This convention preserves the orphan-rejection guard for unknown categories while admitting the test-runner vocabulary that /gaia-test-run already depends on. Mirrors the orphan-rejection pattern established by /gaia-config-device-target and propagated across the config-skill family.
• Edits MUST go through the diff-preview confirmation gate — never write without an explicit user confirm response.
• If the tools section is missing (absent from the file), the skill MUST inform the user and offer to scaffold a default section, OR abort.

Steps

Step 1 — Locate project-config.yaml

• Resolve via ${CLAUDE_PLUGIN_ROOT}/scripts/resolve-config.sh project_config_path (fallback config/project-config.yaml).
• HALT if missing.

Step 2 — Extract the tools Section

• Run ${CLAUDE_PLUGIN_ROOT}/scripts/config-yaml-editor.sh extract <path> tools.
• Exit 2 (missing / absent section): offer scaffold-or-abort. Default scaffold (empty heading + category-comment block sourced from ${CLAUDE_PLUGIN_ROOT}/scripts/list-adapters.sh; users opt in to the categories they need):

  tools:
    # Available adapter categories (from list-adapters.sh):
    #   a11y-scanner | dast | dep-audit | deploy | e2e-runner |
    #   formatter | linter | mobile-static | perf-tool | sast | secret-scan
    # Plus the prose-only category (no adapter; direct invocation):
    #   test_runner    -- consumed by /gaia-test-run
    # Add a category as `<category>: { provider: <provider-name> }`. Run
    # /gaia-list-tools to see the available providers per category.
  

Step 3 — Present Category Editor

Note: The CRUD menu below is the LLM-driven interaction pattern under Claude Code main-turn orchestration. The deterministic helpers under plugins/gaia/scripts/ are the actual write primitives; the menu is performed by the LLM orchestrator from this SKILL.md, not by a TUI.

• Render the current category-to-provider mapping as a table.
• Prompt for category and new provider/config.
• Cross-reference list-adapters.sh to surface available providers.

Step 4 — Diff Preview + Confirmation Gate

• Generate a unified diff via diff -u (same format as git diff --no-index).
• Prompt: "Apply this edit? [y/n]". HALT without writing on n — file remains byte-identical to its pre-edit state.

Step 5 — Write Back

• On y: write the new section to a temp file and invoke config-yaml-editor.sh replace <path> tools <temp-file>.

Step 6 — Optional Validation Pass

• Suggest running /gaia-config-validate to confirm the modified file still passes schema validation.

Notes

• See schemas/project-config.schema.json .properties for the closed set of declared top-level sections. This skill ONLY edits tools.

Config-skill author convention: orphan-rejection pattern

The orphan-rejection pattern is a shared convention across the /gaia-config-* skill family: when the user supplies an identifier that is not in the canonical closed set, the skill rejects with exit 1, names the offending identifier in the error message, and points the user at the repair command. Concrete sites:

• /gaia-config-platform — rejects empty / punctuated identifiers; warns on unknown-but-valid kebab-case (the platform surface is extensible).
• /gaia-config-device-target — rejects orphan platforms (a <platform> not present in platforms[]); error names the platform and points to /gaia-config-platform add <platform>.
• /gaia-config-severity — rejects internals outside {Critical, High, Medium, Low, Info} and verdicts outside {BLOCKED, REQUEST_CHANGES, APPROVE}.
• /gaia-config-gates — rejects unknown gate names (kebab-case check) and the same severity/verdict closed sets as /gaia-config-severity.
• /gaia-config-tool (this skill) — rejects unknown adapter categories per the Critical Rules section above; pointer goes to /gaia-list-tools.

When authoring a new /gaia-config-* skill, follow this convention: define the closed set, reject unknown values with exit 1, name the offender in the error, and point the user at the repair command.