GJC SDK session discovery

Use this skill when an external agent needs to find or inspect local GJC sessions without terminal scraping, MCP, or coordinator delegation.

Required behavior

1. Resolve the repository root explicitly.
2. Run gjc sdk session list --json with that repository as the working directory and consume only its credential-free Broker DTO.
3. Select an exact session ID from that DTO, then use gjc sdk session inspect <sessionId> --json or the fixed raw-query commands below.
4. Fail closed for missing, unavailable, stale, dead, unknown, or ambiguous Broker results.
5. Never scan .gjc/state/sdk, parse endpoint records, read credentials, or open a raw per-session WebSocket.
6. Add --json explicitly to every machine CLI call: successful session JSON is unchanged, but default ordinary failures are text on stderr. Consume the single gjc.command-error version 1 stdout envelope on nonzero exit; never treat missing JSON as success or publish raw stderr. Usage exits 2; operation failures exit 1.

Core inspection recipe

Compose this task-required pull-based view in order with gjc sdk session raw query <sessionId> --query <query> --json:

1. session.metadata
2. context.get
3. goal.list/get
4. todo.list
5. workflow.gates.list
6. session.stats

Fetch transcript pages and diffs only when the user's task requires them:

• transcript.list and transcript.body
• diff.list_files, diff.list_hunks, and diff.read_hunk

The reads are not an atomic snapshot. For every reported field, identify its source query and classify it as confirmed, inferred, stale, unavailable, or unknown. Preserve partial results when independent queries succeed; never invent a missing value.

Bounded discovery and failure evidence

Use inert local help, for example gjc sdk session raw query --help --json. Sections are overview|usage|children|arguments|options|examples|recovery; --help-section <section> --help-page <N> selects a page (default overview/1). Follow returned next.argv with --help-revision <sha256> and --json intact. -h is supported, --help=json is not; selectors require actual help, no repeats and positive decimal safe-integer pages. Values and -- cannot activate help. Help lists only the local node/immediate children and performs no probes.

Help, ordinary errors and evidence pages are each at most 8192 UTF-8 bytes; this does not bound or paginate successful query bodies. Preserve safe complete references and outcome certainty. An uncertain result never proves non-execution. Do not add probes or automatic retries/restarts/kills just to produce guidance; never suggest gjc daemon restart sdk (daemon kinds are telegram/discord/slack).

Only when a failure advertises a verified retained continuation, retrieve it at gjc sdk (or its original gjc daemon family) with --error-ref <id> and --error-sha256 <digest>, optional --error-page <N> and --error-agent-dir <dir>, plus --json. Use the returned argv, not placeholders. Root retrieval is exclusive with help/operations; it never scans other roots or reruns an operation. Retention is exactly 24 hours, non-sliding: at most 64 committed records, 1 MiB each and 16 MiB aggregate, plus one 1 MiB pending file and one 4096-byte lock. Help/success does not initialize this store.

Disk, permissions, quota or publication failure may yield complete: false, evidence.status: "unavailable", continuation: null; preserve the original certainty and warn against blind replay. Never fabricate a locator or promise lossless retrieval without successful publication and an unexpired record. Reassemble base64 fragments by contiguous byte offsets and verify length/SHA256 before decoding UTF-8/JSON. A fragment is not executable; text help's escaped JSON display literals are not shell argv.

Broker-bound references

• SDK session CLI: docs/sdk-session-cli.md in the gajae-code repository
• Canonical templates: gjc-sdk-author/templates/direct-sdk.ts and direct-sdk.py