docs: add examples directory with LLM and OpenClaw tool invocation patterns#42
docs: add examples directory with LLM and OpenClaw tool invocation patterns#42Bandwe wants to merge 1 commit intoopenclaw:mainfrom
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…tterns - Add examples/ directory with 4 workflow examples: - llm-basic.lobster: Simple LLM invocation - llm-with-approval.lobster: LLM calls with human approval gates - openclaw-tool-call.lobster: Calling OpenClaw tools (llm-task, sessions.list, etc.) - data-pipeline.lobster: Data passing between steps without temp files - Add examples/README.md with detailed documentation and common patterns - Update main README.md with examples section reference - Enhance 'Calling LLMs from workflows' section with workflow examples - Enhance 'Calling OpenClaw tools from workflows' section with multiple methods Fixes openclaw#26
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| # Step 2: Request approval if the operation is costly | ||
| - id: approval | ||
| approval: "About to run an LLM query. Proceed?" | ||
| when: $check-cost.json.needsApproval |
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when: expression syntax
evaluateCondition only accepts true, false, $step.approved, and $step.skipped in src/workflows/file.ts:461-479. This example uses $check-cost.json.needsApproval here (and later a ternary), so lobster run will throw Unsupported condition before it ever reaches the approval or LLM steps. As written, the new approval workflow is not runnable for any input.
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| # Step 1: Create initial data | ||
| - id: init | ||
| run: > | ||
| echo '${items}' | json |
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json as a Lobster stage, not a shell binary
run: steps execute in the system shell, but this package only installs lobster, openclaw.invoke, and clawd.invoke as executables (package.json). The json command exists only as an in-process Lobster stage in src/commands/stdlib/json.ts, so echo ... | json fails with json: command not found on a normal install. That makes the very first step of this advertised example impossible to start.
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| pipeline: > | ||
| llm.invoke | ||
| --provider openclaw | ||
| --prompt "Format this summary as a bullet list: ${summarize.json}" |
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$step.json instead of ${step.json} here
${...} placeholders are only expanded for workflow args in resolveArgsTemplate (src/workflows/file.ts:423-427); previous-step outputs are substituted later via bare $step.json / $step.stdout (src/workflows/file.ts:430-437). Because this line uses ${summarize.json}, the second LLM call receives the literal text ${summarize.json} instead of the first step's output, so the chaining example silently does the wrong thing. The same unsupported syntax appears throughout the new docs/examples.
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| openclaw.invoke | ||
| --tool llm-task | ||
| --action json | ||
| --args-json '{"prompt": "${prompt}"}' |
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--args-json
Workflow ${arg} substitution is a plain string replace (src/workflows/file.ts:423-427). Embedding it directly inside JSON here means prompts containing quotes, backslashes, or newlines produce invalid --args-json, and openclaw.invoke immediately rejects that via JSON.parse in src/commands/stdlib/openclaw_invoke.ts:61-65. Inputs like He said "hi" will therefore make this example fail before it reaches OpenClaw.
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Thanks for the docs work here. We’re narrowing scope for the next Lobster npm release and not taking overlapping docs/example rewrites right before publish. There are multiple competing PRs covering the same README/examples lane, so we’re going to close this set and do one consolidated docs pass after the release instead of merging overlapping versions piecemeal. I’m leaving the underlying docs need tracked separately, and we can revisit the best pieces from this after the publish. |
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Fixes #26
Summary
This PR adds comprehensive examples for calling LLMs and OpenClaw tools from Lobster workflows, addressing the confusion in issue #26.
Changes
New examples/ directory
Added 4 ready-to-run workflow examples:
Documentation
examples/README.md - Comprehensive guide with:
README.md updates:
Key improvements over existing docs
Testing
All examples follow the patterns tested in test/llm_invoke.test.ts and test/llm_task_invoke.test.ts.
/cc @gotexis