Re-introduce the agent-first symmetric envelope deleted in commite623e820(2026-05-15). Under the v0.7 constraint that AI agents are primary consumers, the bare-JSON shape can't carry protocol channels (_notice / risk / meta / request_id / profile) that agents need. Errors-on-stderr and typed exit codes frome623e820are preserved; the envelope wraps the success/error payloads on top. - cli/internal/output/envelope.go (new): Envelope / ErrorEnvelope / Meta / ErrDetail / RiskDetail structs; WriteEnvelope + WriteErrorEnvelope writers; PendingNotice plumbing for the open-map _notice channel (reserved infra; producer wiring planned for v0.8). - cli/internal/output/envelope_test.go (new): 7 tests covering success / error / TTY indent / Notice / Risk shapes. - cmdutil.Error extended with RetryCommand (directly-executable argv distinct from prose Hint), RetryAfterSeconds (HTTP Retry-After), *RiskInfo (nested level+action; ErrInternalServer- vs-NotFound distinction), Detail (open structured payload), Silent (suppress stderr emit while preserving Code for ExitCode). - ErrorToDetail single source of envelope.error construction; reused by stderr PrintError, MCP StructuredContent, and batch per-item error path. - WithHint / WithRetryCommand / WithRetryAfter / WithDetail / WithRisk builders. IsCancelled helper. AsError unwrap helper. - defaultHint covers ~21 codes; defaultRetryCommand symmetric counterpart for 6 keyway codes. DefaultHint / DefaultRetryCommand exported wrappers for cross-package callers. - ClassifyHTTPError tightened: rescues HTTP 500 with structured server-side code 1003 (ErrNotFound) into resource.not_found. Server's generic 1007 (ErrInternalServer) bucket stays as server.error — including it would mis-route validation failures (e.g. SQLSTATE 22001) as not-found. - PrintError dual-mode: text/human → prose with code:msg / hint / retry lines; json/ndjson → envelope on stderr. Mode pinned by root PersistentPreRunE via SetFormatMode. resolveFormatEarly() scans argv before cobra dispatch so cobra-side validators (unknown flag, arg-count) still surface as envelope when --format json is in effect. Silent typed errors short-circuit the stderr emit. FlagError mapped to input.invalid_argument for the envelope (exit code stays 2 via FlagError class). - Unknown-subcommand guard installed recursively at the root: parents with subcommands but no Run/RunE get a typed RunE that emits input.unknown_subcommand envelope with detail.{unknown, command_path, available[]} and retry_command "<parent> --help". cobra.ArbitraryArgs bypasses legacyArgs validation so the guard receives unmatched argv. - cmdutil.Error.Error() returns "<code>: <message>[: <cause>]" for chain debugging; ErrorToDetail strips the code prefix from envelope.message since the separate type field carries it (prevents the doubled-prefix "code: code: ..." that agents would see). Spec: docs/superpowers/specs/2026-05-20-weknora-cli-v0.7-design.md §0 / §4
weknora — WeKnora CLI
A command-line interface for the WeKnora RAG knowledge-base server. Lets you authenticate, manage knowledge bases and documents, run hybrid search, and ask streaming RAG questions from your terminal or from an AI agent.
$ weknora --help
Command-line client for the WeKnora RAG server. Manage knowledge bases
and documents, run hybrid search, chat with grounded answers, or expose
a curated read-only MCP tool surface for AI agents.
Available Commands:
agent Manage and invoke custom agents
api Make a raw API request to the WeKnora server
auth Manage authentication credentials and contexts
chat Ask a streaming RAG question against a knowledge base
chunk Manage document chunks (RAG retrieval debug)
completion Generate the autocompletion script for the specified shell
context Manage CLI contexts (named connection targets)
doc Manage documents in a knowledge base
doctor Run 4 self-checks: base URL, auth, server version, credential storage
help Help about any command
kb Manage knowledge bases
link Bind the current directory to a knowledge base
mcp Run weknora as a Model Context Protocol server
search Search across chunks, knowledge bases, documents, or sessions
session Manage chat sessions
unlink Remove the directory's knowledge-base binding
version Show CLI build metadata
The wire contract for AI agents is documented below. For contributing to the CLI source, see AGENTS.md.
Install
From source
Requires Go 1.26+.
git clone https://github.com/Tencent/WeKnora.git
cd WeKnora/cli
go build -o weknora .
sudo mv weknora /usr/local/bin/ # or anywhere on $PATH
Pre-built binaries
Pre-built binaries for Linux / macOS / Windows are produced by CI on each release. Grab the latest from the Releases page.
5-minute quickstart
# 1. Log in to your WeKnora server (interactive password prompt)
weknora auth login --host https://kb.example.com
# 2. Or pipe an API key from stdin (for CI / agents)
echo "sk-..." | weknora auth login --host https://kb.example.com --with-token
# 3. List knowledge bases
weknora kb list
# 4. Bind this directory to a knowledge base — subsequent commands auto-resolve --kb
weknora link --kb my-knowledge-base
# 5. Upload a document, then block until parsing finishes
weknora doc upload notes.md
weknora doc wait doc_abc # exit 0 completed, 1 failed, 124 --timeout, 130 ^C
# 6. Search
weknora search chunks "what is reciprocal rank fusion?"
# 7. Ask the LLM (streams to terminal)
weknora chat "summarise the design doc"
# 8. Manage custom agents (full hybrid surface: see `weknora agent --help`)
weknora agent list
weknora agent invoke ag_abc "what's our q4 retention plan?"
# 9. Inspect a document's chunks for RAG retrieval debug
weknora chunk list --doc doc_xyz
# 10. Health & verification verbs
weknora kb status kb_abc # fast snapshot: reachable / counts / processing flag (1 HTTP)
weknora kb check kb_abc # deep verify: also aggregates failed_count via doc list (1+N HTTP)
weknora agent status ag_abc # fast: reachable / model_id
weknora agent check ag_abc # deep: probes every KB in the agent's scope
Multi-context
Switch between several WeKnora servers (or several tenants on the same server) without re-logging in:
weknora auth login --host https://prod.example.com --name prod
weknora auth login --host https://staging.example.com --name staging --with-token < .staging-key
weknora auth list
weknora context use prod
Credentials are persisted to your OS keyring (Keychain on macOS, libsecret on
Linux, Wincred on Windows) when available, otherwise to a 0600-mode file
under $XDG_CONFIG_HOME/weknora/secrets/. The active context lives in
~/.config/weknora/config.yaml.
To remove a context's stored credentials:
weknora auth logout # current context
weknora auth logout --name staging # specific
weknora auth logout --all
Wire contract
Designed to be agent-first. Stable across minor releases; breaking
changes announced in the changelog and the corresponding
weknora --version bump.
Streams
- stdout is the data channel: bare JSON with
--format json, or human-formatted output. Never carries error text. - stderr is logs, progress, warnings, and errors. A non-empty stderr does not mean failure — read the exit code.
JSON output
Every command supports --format json, emitting bare JSON for the
resource it produces — an array for list / search, a single object
for view and write outcomes:
weknora kb list --format json # [{ "id": "kb_x", "name": "Eng" }, …]
weknora kb view kb_x --format json # { "id": "kb_x", "name": "Eng", … }
weknora kb list --format json --jq '.[] | {id, name}' # project to listed fields
weknora kb list --format json --jq '.[].id' # jq over the bare data
--format ndjson is also accepted for streaming list commands; each
element is emitted as its own JSON line. When stdout is not a TTY (pipe
or redirect), --format json is the default — running weknora kb list | jq works without an explicit flag.
Errors
On failure, stdout stays empty and the typed error goes to stderr in this format:
<code.namespace>: <message>[: <wrapped cause>]
hint: <actionable next-step>
Example:
auth.unauthenticated: fetch current user: HTTP error 401: ...
hint: run `weknora auth login`
The full code registry is in cli/internal/cmdutil/errors.go
(AllCodes()). Code namespaces: auth.* / resource.* / input.* /
server.* / network.* / local.* / mcp.* / operation.* (CLI-level
wait/poll outcomes: operation.timeout, operation.failed, operation.cancelled).
Exit codes
| Code | Meaning | Agent action |
|---|---|---|
0 |
success | continue |
1 |
typed local.* / operation.failed / unclassified |
read stderr, decide retry/abort |
2 |
flag / argument validation error | re-check weknora <cmd> --help |
3 |
auth.* (token missing / expired / forbidden) |
re-auth, then retry |
4 |
resource.not_found |
verify the resource id |
5 |
input.* (other than confirmation_required) |
adjust args, retry |
6 |
server.rate_limited |
back off, retry |
7 |
server.* / network.* |
transient — retry with backoff |
10 |
input.confirmation_required (high-risk write) |
ask the human, retry with -y only after explicit approval |
124 |
operation.timeout (e.g. doc wait --timeout reached) |
raise --timeout or check the underlying job |
130 |
operation.cancelled (SIGINT / SIGTERM) |
stop, do not retry |
Exit 10 is the wire-level signal for "destructive write needs
explicit confirmation". Pass -y/--yes on kb delete / kb empty /
doc delete / session delete / context remove (on the current
context) / agent delete / chunk delete when running headless.
Never auto-add -y without the user's explicit go-ahead — exit 10
is the guard against unintended writes.
Other agent ergonomics
- For chat / agent invoke in agent contexts, pass
--format json— streaming tokens to stdout makes JSON parsing impossible. --format jsoncomposes with the global--context <name>for single-shot context overrides without disk writes.weknora mcp serveexposes a curated read-only tool surface over stdio MCP for any MCP-compatible client.
Advanced operations not exposed as flags
WeKnora CLI exposes top use cases as polished commands; deep
configuration goes through the raw HTTP passthrough. CLI flag coverage
targets common workflows, not 1:1 API parity. Examples of deep
operations that intentionally go through weknora api:
- Tuning a KB's nested config — chunking strategy, summary model,
multimodal extraction defaults, FAQ thresholds, VLM model. Use
weknora api PUT /api/v1/knowledge-bases/<id> --input -with a JSON body matching the server'sUpdateKnowledgeBaseRequest. (Note: the storage provider is set once at create time viakb create --storage-provider <name>and is not updatable.) - Per-request
chatparameters — multi-KB scope, summary model override, image attachments, web search toggle. Useweknora api POST /api/v1/knowledge-chat/<session-id> --input -. - Per-request
agent invokeoverrides — same shape viaweknora api POST /api/v1/agent-chat/<session-id> --input -. - Operations without a CLI verb — register / change-password / OIDC flows, organization / sharing endpoints, tenant management.
weknora api --help documents the raw passthrough. Run
weknora doctor first to verify auth and base URL.
Health check
Run weknora doctor for a 4-status diagnostic (OK / warn / fail /
skip) covering base URL reachability, authentication, server-CLI
version skew, and credential storage backend. Add --format json for
machine-readable output, --offline to skip network checks.
For per-resource verification, the status / check verb pair gives
a fast vs deep choice:
| Verb | Cost | Use |
|---|---|---|
weknora kb status <kb-id> |
1 HTTP | live counts / processing flag |
weknora kb check <kb-id> |
1+N HTTP | adds failed_count via doc-list page-walk |
weknora agent status <agent-id> |
1 HTTP | reachable / model_id |
weknora agent check <agent-id> |
1+N HTTP | also probes every KB in the agent's scope |
weknora doc wait <doc-id> [<doc-id>...] blocks until each document
reaches a terminal parse_status (completed or failed). Exit codes:
0 (all completed), 1 (any failed), 124 (--timeout reached), 130
(Ctrl-C / SIGTERM). Multi-target is polled concurrently (max 5 in
flight; pipe through xargs -P for more).
Development
# Run unit + contract tests
go test ./...
# Run the real-server e2e suite (requires WEKNORA_E2E_HOST + token env vars)
go test -tags acceptance_e2e ./acceptance/e2e/...
# Static analysis
go vet ./...
CI (.github/workflows/cli.yml) runs build + unit + contract tests on Linux /
macOS / Windows × Go 1.26, path-filtered to changes under cli/.
Contributing / Reporting issues
- Bugs and feature requests: file an issue at github.com/Tencent/WeKnora/issues.
- Security disclosures: see the repository-level SECURITY.md. Do not file public issues for security findings.
- Pull requests: the developer guide for editing the CLI lives in
AGENTS.md (build / test / command-surface design SOP /
CRUD flag conventions). Run
go test ./... -race -count=1andgo vet ./...before submitting.
License
MIT — see the repository LICENSE.