Adds the shared adversarial-input harness described in TEST-EXAMPLES.md
§"CLI Negative Matrix" and applies it across two layers:
1. tests/helpers/cli-negative.cjs — runCli() wraps spawnSync of
get-shit-done/bin/gsd-tools.cjs, prepends --json-errors by default,
and returns a typed IR { status, ok, reason, message,
hasStackTrace, ... } so adversarial-case tests assert on
reason codes — never on stderr prose.
2. tests/feat-3593-cli-negative-config.test.cjs — full 12-category
matrix for the config command family (the highest-risk read/write
surface): missing/empty/whitespace args, duplicate --cwd,
unknown subcommand, value-looks-like-a-flag, corrupt config.json,
50KB key, Unicode/emoji keys and values, and 9 distinct shell-
metacharacter payloads asserted as NOT-executed via per-test
sentinel-file probes.
3. tests/feat-3593-cli-negative-universal.test.cjs — narrower
cross-family sweep (phase, roadmap, state, config, workstream,
init, validate). Pins the three universal invariants every
family must satisfy: bare invocation does not crash with a V8
stack trace, unknown subcommand emits a typed reason, and shell
payloads as argv values are not executed.
4. tests/feat-3593-cli-negative-harness.test.cjs — meta-test that
pins the harness IR contract so a future regression in the
parser (stack-trace detection, JSON shape extraction, hostile
stderr handling) surfaces before it cascades through every
matrix file.
Bug fix surfaced by the new tests:
get-shit-done/bin/lib/config.cjs cmdConfigSet — invoking
`config-set <key>` with no value silently returned exit 0 and
emitted { updated: true } even though the value parameter was
undefined. JSON.stringify dropped the key during the write or
persisted a corrupt entry. Now rejected with typed ERROR_REASON.USAGE
before any write. Matching guard added to SDK configSet for parity.
Harness coverage delivered: 58 new tests (9 meta + 26 config + 23
universal sweep). Pre-existing config suites (101 tests) all pass.
lint-no-source-grep clean.
Refs #3593
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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