Write Guide
vercel/next.js
Generates technical guides that teach real-world use cases through progressive examples.
Guides CPU-only BDDL activity discovery, problem parsing, initial and goal condition inspection, symbolic scope construction, grounding, callback-based evaluation, natural-language rendering, and…
Apache-2.0Auto-check passed
Install Symbolic Tasks
$ npx skills add VectorSpaceLab/AREX-Skill --skill symbolic-tasks -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install VectorSpaceLab/AREX-Skill symbolic-tasks --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks .claude/skills/symbolic-tasks && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "symbolic-tasks" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks into .claude/skills/symbolic-tasks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "symbolic-tasks", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasksType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add VectorSpaceLab/AREX-Skill --skill symbolic-tasks -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install VectorSpaceLab/AREX-Skill symbolic-tasks --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks .agents/skills/symbolic-tasks && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "symbolic-tasks" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks into .agents/skills/symbolic-tasks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "symbolic-tasks", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add VectorSpaceLab/AREX-Skill --skill symbolic-tasks -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install VectorSpaceLab/AREX-Skill symbolic-tasks --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks .cursor/skills/symbolic-tasks && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "symbolic-tasks" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks into .cursor/skills/symbolic-tasks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "symbolic-tasks", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/VectorSpaceLab/AREX-Skill.git --path skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add VectorSpaceLab/AREX-Skill --skill symbolic-tasks -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install VectorSpaceLab/AREX-Skill symbolic-tasks --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks .gemini/skills/symbolic-tasks && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "symbolic-tasks" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks into .gemini/skills/symbolic-tasks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "symbolic-tasks", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install VectorSpaceLab/AREX-Skill symbolic-tasksInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add VectorSpaceLab/AREX-Skill --skill symbolic-tasks -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks .github/skills/symbolic-tasks && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "symbolic-tasks" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks into .github/skills/symbolic-tasks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "symbolic-tasks", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add VectorSpaceLab/AREX-Skill --skill symbolic-tasks -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install VectorSpaceLab/AREX-Skill symbolic-tasks --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/VectorSpaceLab/AREX-Skill.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks .opencode/skills/symbolic-tasks && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "symbolic-tasks" agent skill from https://github.com/VectorSpaceLab/AREX-Skill/tree/main/skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks into .opencode/skills/symbolic-tasks/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "symbolic-tasks", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
symbolic-tasks- GitHub stars
- 331
- Token cost
- ~548 tokens
- SKILL.md length
- 169 words
- Files
- 4 (incl. scripts, references)
- Skills in repo
- 157
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Guides CPU-only BDDL activity discovery, problem parsing, initial and goal condition inspection, symbolic scope construction, grounding, callback-based evaluation, natural-language rendering, and…
- Works in 4 steps: Confirm the package before inspecting… → For a read-only packaged activity… → Read API reference before constructing… → …
- BDDL activities
- SKILL.md covers Route and Boundaries
- Runs Python scripts from its folder; calls python
What it does
Symbolic Tasks is an agent skill from VectorSpaceLab/AREX-Skill. Guides CPU-only BDDL activity discovery, problem parsing, initial and goal condition inspection, symbolic scope construction, grounding, callback-based evaluation, natural-language rendering, and safe syntax validation. Use for BDDL activities, behavior task definitions, .bddl problems, predicates, object scope, or activity lists.
Its SKILL.md is about 550 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including scripts and reference files (for example `references/api-reference.md`, `references/troubleshooting.md` and `scripts/inspect_bddl_activity.py`).
The repository describes itself as: A Skill Library for Automated Machine Learning. The licence is Apache-2.0.
When your agent uses it
- BDDL activities
- Behavior task definitions
Example prompts
- “Use the symbolic-tasks skill to guide CPU-only BDDL activity discovery, problem parsing, initial and goal condition inspection, symbolic scope…”
- “/symbolic-tasks”
Requirements
- Python 3
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Confirm the package before inspecting definitions
- For a read-only packaged activity inspection, run
- Read API reference before constructing parsed
- Read troubleshooting when activity lookup,
What it can do on your machine
Read from SKILL.md and the folder at commit ac3fe1a. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Symbolic Tasks loads about 548 tokens when it runs, and up to ~8.9k if it reads all its reference files. Until then it costs about 87 tokens; SKILL.md has 169 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
The full file from VectorSpaceLab/AREX-Skill at commit ac3fe1a, republished under its Apache-2.0 licence (© VectorSpaceLab). 169 words, ~548 tokens.
Download SKILL.mdSave it as
.claude/skills/symbolic-tasks/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- symbolic-tasks
- description
- Guides CPU-only BDDL activity discovery, problem parsing, initial and goal condition inspection, symbolic scope construction, grounding, callback-based evaluation, natural-language rendering, and safe syntax validation. Use for BDDL activities, behavior task definitions, .bddl problems, predicates, object scope, or activity lists.
- disable-model-invocation
- true
- metadata.disco-role
- operating
- license
- NO_LICENSE
Symbolic Tasks
Use this sub-skill for symbolic BDDL work that needs only the bddl Python
package and packaged activity/domain data.
Route
Confirm the package before inspecting definitions:
bash python -m pip install "bddl==3.7.0" python -c "from importlib.metadata import version; import bddl; print(version('bddl'))"For a read-only packaged activity inspection, run:
bash python sub-skills/symbolic-tasks/scripts/inspect_bddl_activity.py --activity <activity> --instance 0 --domain behavior-1kOmit
--activityto list packaged activities. Add--natural-languagefor readable conditions or--tokensfor the raw nested token tree.Read API reference before constructing parsed conditions, scopes, compiled expressions, grounded options, evaluation callbacks, or BDDL text.
Read troubleshooting when activity lookup, packaged files, syntax, predicates, scope, grounding, or evaluation fails.
Boundaries
- This route covers symbolic parsing, representation, inspection, compilation, grounding, and callback-driven Boolean evaluation on CPU.
- It does not launch a simulator, populate physical scenes, execute robot behavior, provide object-state implementations, or establish that a symbolic task is physically feasible.
- Route object taxonomy, synset abilities, generated object metadata, and knowledge-base model questions to the sibling knowledge-base sub-skill. Return here after obtaining the object categories or metadata needed for a symbolic condition.
- Do not import OmniGibson or Isaac Sim for these workflows.
© VectorSpaceLab, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 3 other files (scripts, references) in skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks of VectorSpaceLab/AREX-Skill.
- SKILL.md
- references/api-reference.md
- references/troubleshooting.md
- scripts/inspect_bddl_activity.py
Open the folder on GitHubat commit ac3fe1a
Compare with similar skills
Symbolic Tasks next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Symbolic Tasks this skillVectorSpaceLab/AREX-Skill | 331 | — | ~548 | Automated safety check: Pass | Apache-2.0 | |
| Write Guidevercel/next.js | 143k | — | ~1.6k | Automated safety check: Pass | MIT | |
| Is This A Problemanthropics/claude-for-legal | 9.6k | 2 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Design Guidepaperclipai/paperclip | 99k | 1 repos | ~3.1k | Automated safety check: Pass | MIT | |
| Write Guidesremix-run/remix | 33k | — | ~2.6k | Automated safety check: Pass | MIT | |
| Modeling Activation MetricsPostHog/posthog | 40k | — | ~1.4k | Automated safety check: Pass | Custom licence |
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Questions about Symbolic Tasks
What does Symbolic Tasks do?
Guides CPU-only BDDL activity discovery, problem parsing, initial and goal condition inspection, symbolic scope construction, grounding, callback-based evaluation, natural-language rendering, and…. Symbolic Tasks is an agent skill from VectorSpaceLab/AREX-Skill. Guides CPU-only BDDL activity discovery, problem parsing, initial and goal condition inspection, symbolic scope construction, grounding, callback-based evaluation, natural-language rendering, and safe syntax validation.
When should I use Symbolic Tasks?
Symbolic Tasks fits situations like: BDDL activities; behavior task definitions.
How do I install Symbolic Tasks in Claude Code?
Run `npx skills add VectorSpaceLab/AREX-Skill --skill symbolic-tasks -a claude-code`. Or copy the skill folder (skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks in VectorSpaceLab/AREX-Skill) into .claude/skills/symbolic-tasks in your project. Claude Code loads it when a task matches its description.
How do I install Symbolic Tasks in Codex?
Run `npx skills add VectorSpaceLab/AREX-Skill --skill symbolic-tasks -a codex`. Or copy the skill folder (skills/repositories/repo-skills/behavior-1k/sub-skills/symbolic-tasks in VectorSpaceLab/AREX-Skill) into .agents/skills/symbolic-tasks in your project. Codex loads it when a task matches its description.
Can I use Symbolic Tasks in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add VectorSpaceLab/AREX-Skill --skill symbolic-tasks -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/symbolic-tasks, .gemini/skills/symbolic-tasks, .github/skills/symbolic-tasks and .opencode/skills/symbolic-tasks in your project.
What does Symbolic Tasks need to run?
Going by SKILL.md and its folder, Symbolic Tasks needs Python for the scripts in its folder and the command-line tools its instructions call (python). Our summary lists: Python 3.
Does Symbolic Tasks access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Symbolic Tasks safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Symbolic Tasks use?
Symbolic Tasks is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Symbolic Tasks use?
About 548 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 8.4k tokens, read only when the agent opens those files.
What are the alternatives to Symbolic Tasks?
Skills that share tags, products or a category with Symbolic Tasks: Write Guide (vercel/next.js, 143k stars), Is This A Problem (anthropics/claude-for-legal, 9.6k stars), Design Guide (paperclipai/paperclip, 99k stars) and Write Guides (remix-run/remix, 33k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Symbolic Tasks?
VectorSpaceLab (a GitHub organization) maintains it in VectorSpaceLab/AREX-Skill, which has 331 GitHub stars. The repository holds 157 skills in this directory. The repository was last updated on September 3, 2026.
Source: VectorSpaceLab/AREX-Skill on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.