Invoking Configurable Subagents

VerifiedCaution

Spawns subagents with configurable tool access that return just the answers without flooding your context. Use for summarizing extensive git history, comparing across multiple repositories in parallel, or processing large diffs/logs.

Sby Skills Guide Bot
DevelopmentIntermediate
6/2/2026
Claude Code
#subagents#parallel-processing#git-history#tool-restriction#repo-analysis

Recommended for

Automated summary

Spawns subagents with configurable tool access to process large data (git history, logs) and return concise answers without flooding the context.

Strengths

  • Parallel execution of multiple subagents to handle simultaneous tasks.
  • Fine-grained tool restriction to prevent unnecessary actions and preserve context.
  • Efficient for analyzing large repositories or logs without context pollution.

Limitations

  • Requires the `synu` shell plugin and `claude` CLI tool, limiting portability.
  • Relies on precise tool configuration; incorrect settings may yield incomplete results.
  • Prompts must be thorough and specific to be useful, requiring careful thought.
When to use it

When processing large datasets (git history, diffs, logs) or performing parallel analyses across multiple repositories.

When not to use it

For simple tasks or when subagent doesn't require specific tool restrictions, as the setup overhead outweighs benefits.

Security analysis

Caution
Quality score80/100

The skill describes spawning subagents via shell commands, which is a powerful capability. While the example restricts tools tightly, the skill itself does not enforce restrictions; it relies on the user to specify safe configurations. This could lead to unintended command execution if misused.

Findings
  • •Uses shell commands (synu claude) to spawn subagents with potentially arbitrary tool access; improper restriction could lead to execution of unintended operations.
  • •Relies on external CLI tools (synu, claude) which may not be present or configured securely.
How this analysis is made

Examples

Git changes summary
cd /path/to/other/repo && synu claude --disallowed-tools 'Bash(*) Explore Edit Read WebFetch WebSearch Glob Grep NotebookEdit NotebookRead SlashCommand Write' --allowed-tools 'Bash(git log:*) Bash(git show:*)' -p 'Using only git log and git show, summarise the major user-facing changes in abc123..def456. Do not provide code snippets or technical details. Consider user-facing changes, like being able to set a port-out PIN or adding a new button or changing font sizes.'
Parallel repo analysis
synu claude --allowed-tools 'Read' -p 'Analyze the README.md files of /path/to/repoA and /path/to/repoB. List the main features of each and compare them.'
Log error analysis
synu claude --disallowed-tools 'Edit Write Explore' --allowed-tools 'Bash(grep:*) Bash(cat:*) Bash(awk:*)' -p 'Analyze /var/log/app.log for errors. Using grep and awk, count each unique error type and list the top 5 most frequent errors with their count and first occurrence timestamp.'

name: invoking-subagents description: Spawns subagents with configurable tool access that return just the answers without flooding your context. Use for summarizing extensive git history, comparing across multiple repositories in parallel, or processing large diffs/logs. compatibility: Requires synu shell plugin and claude CLI tool license: AGPL-3.0-or-later metadata: author: Amolith amolith@secluded.site

Invoke with synu claude --flags -p 'prompt'.

Important: Subagents are scoped to their cwd, just like you. To work in another repository, cd there first.

Use a precise and thorough prompt. Aggressively restrict which tools it can interact with; if it doesn't need Edit, don't give it Edit. If it needs to read files, Glob, Grep, and Read are probably sufficient. Task can be helpful. Notebook, Slash, Write, Web, Edit, etc. should almost never be necessary. Execute them in the background. You may invoke multiple when appropriate and in parallel if helpful. Once they're running, you may either stop and wait for me to tell you they're finished or continue with other work.

Example exploring git history in another repo:

cd /path/to/other/repo && fish -c "synu claude --disallowed-tools 'Bash(*) Explore Edit Read WebFetch WebSearch Glob Grep NotebookEdit NotebookRead SlashCommand Write' --allowed-tools 'Bash(git log:*) Bash(git show:*)' -p 'Using only git log and git show, summarise the major user-facing changes in HASH..HASH. Do not provide code snippets or technical details. Consider user-facing changes, like being able to set a port-out PIN or adding a new button or changing font sizes.'"

Refer to installing-synu.md if it's unavailable.

From the file to a first result

The download contains exactly the content displayed on this page. This copy may differ from the latest version in the source repository.

View the source and supporting files

This download contains SKILL.md only. Any scripts, references, templates and dependencies are not included. Get the required files from the source, preserving their directory structure, before continuing.

1. Download the file

Download SKILL.md

From the root of a test project, save the file as .skill-downloads/invoking-configurable-subagents-mm78nnoh/SKILL.md, or use the command below. This folder is for inspecting the skill before installation.

Command for macOS/Linux or WSL: requires a POSIX shell and curl. On Windows without WSL, use the download button and create the folder manually.

mkdir -p '.skill-downloads/invoking-configurable-subagents-mm78nnoh' && curl --fail --show-error --location 'https://skills-guides.com/api/skills/invoking-configurable-subagents-mm78nnoh/download' --output '.skill-downloads/invoking-configurable-subagents-mm78nnoh/SKILL.md.part' && mv '.skill-downloads/invoking-configurable-subagents-mm78nnoh/SKILL.md.part' '.skill-downloads/invoking-configurable-subagents-mm78nnoh/SKILL.md'

2. Check prerequisites

Read SKILL.md before using it. If it references scripts or external services, inspect them and prepare the required access in your test environment.

Environment declared by the author: Requires `synu` shell plugin and `claude` CLI tool

No recognized prerequisites section in this file. This does not mean it is self-contained: libraries, tools and access requirements may be mentioned elsewhere in the content or source repository.

The platforms on this page are catalog indications. The paths below follow tool documentation; they do not prove this skill has been run in those tools. No minimum tool version is confirmed for this listing.

3. Load the skill

After inspection, copy the complete folder into your project using one of the commands below, then open a new tool session. The command stops if a folder with the same name already exists: compare the files before replacing it.

Claude Code
test -f '.skill-downloads/invoking-configurable-subagents-mm78nnoh/SKILL.md' && test -s '.skill-downloads/invoking-configurable-subagents-mm78nnoh/SKILL.md' && mkdir -p '.claude/skills' && test ! -e '.claude/skills/invoking-subagents' && cp -R '.skill-downloads/invoking-configurable-subagents-mm78nnoh' '.claude/skills/invoking-subagents'

OpenSkills

OpenSkills must already be installed. The local install/read procedure is checked with OpenSkills 1.5.0, which requires Node.js ≥ 20.6.0. Catalog slugs are not resolved automatically.

Official OpenSkills installation
openskills install './.skill-downloads/invoking-configurable-subagents-mm78nnoh'

openskills read 'invoking-configurable-subagents-mm78nnoh'

Reading should display the installed file content and its base directory. It does not run the skill or install its dependencies.

For an agent that reads AGENTS.md, then sync the index. This command changes AGENTS.md: review the diff before using it.

openskills sync

Manual method or another tool: attach SKILL.md to a conversation, or open it in an agent that can read files. Include any required supporting resources. No universal folder is recognized by every tool.

4. Try a first task

Use a short, synthetic input: an API endpoint, a small document or an interface brief. In a new conversation, attach the file or give the agent its path, then adapt this request:

Read .skill-downloads/invoking-configurable-subagents-mm78nnoh/SKILL.md and apply its instructions to this example: [describe a test input]. Identify any missing files, dependencies or access. Produce the result requested by the skill without inventing data or running unreviewed scripts.

Expected result: output matching the skill instructions, or a precise list of missing prerequisites. A read confirmation alone does not validate a first use. If an external resource is unavailable, that path remains untested.

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