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agent-manager-skill

Manage multiple local CLI agents via tmux sessions (start/stop/monitor/assign) in an explicitly authorized workspace.

55

Quality

69%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

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tessl review fix ./skills/antigravity-agent-manager-skill/SKILL.md

The canonical home for this skill is agent-manager-skill in sickn33/agentic-awesome-skills

SKILL.md
Quality
Evals
Security

Quality

Content

53%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A short, well-structured, safety-conscious skill body whose main weaknesses are unverified command examples with no working setup path, an unsequenced operational workflow, and review-circumstance prose that spends tokens without aiding execution. It correctly declines to claim capabilities (e.g., cron support) that it cannot back.

Suggestions

Replace the unverified historical commands with a concrete first-run sequence: install/locate the runtime, run `doctor` or `--help` to confirm the CLI, then list agents — so commands are executable as written.

Rewrite "Bounded Operation" as a numbered workflow (list sessions/agents → verify authorization → start/assign → record session/PID → verify the requested result → redact before sharing) so checkpoints are integrated into the sequence rather than stated as principles.

Trim review-circumstance commentary ("unavailable during this review", "retained as attribution") to a one-line provenance note, freeing tokens for operational detail.

DimensionReasoningScore

Conciseness

The body is mostly lean, but review-process meta-commentary ("The historical upstream URL was unavailable during this review", "The original install option is retained as attribution, not an automatic setup step") explains circumstances rather than instructing, and the Limitations boilerplate could be tightened. This matches the mostly-efficient-but-with-unnecessary-explanation anchor.

3 / 5

Actionability

Concrete command shapes are provided ("python3 agent-manager/scripts/main.py doctor/list/start/monitor/assign") but they are explicitly flagged as unverified historical examples with no working install step and path resolution deferred to the reader, so the guidance is incomplete rather than executable. This fits the some-concrete-guidance-but-incomplete anchor better than the mostly-executable anchor at 4.

3 / 5

Workflow Clarity

Validation guidance exists ("List the actual configured agents and existing tmux sessions first", "A session being alive does not prove its task completed; verify the requested result"), so the missing-validation cap is not triggered, but the workflow is never sequenced: operation rules are scattered thematically across "Historical Upstream Command Shapes" and "Bounded Operation" rather than presented as an ordered process with integrated checkpoints. This matches the steps-present-but-checkpoints-implicit anchor.

3 / 5

Progressive Disclosure

The skill is under 50 lines with well-organized sections (When to Use, Prerequisites, Bounded Operation, Notes, Limitations) and no bundled files are needed, which supports a high score. Minor gaps come from dangling external pointers ("see the repo for examples", the clone URL) that reference material outside the bundle without bundling or clearly signaling a substitute, keeping it at 4 rather than 5.

4 / 5

Total

13

/

20

Passed

Description

71%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A specific, well-scoped description with strong action enumeration and a distinctive tmux/local-agent niche. Its main weakness is the absence of an explicit "Use when..." trigger clause, which both caps completeness and slightly limits natural trigger-term coverage.

Suggestions

Append an explicit trigger clause, e.g. "Use when the user asks to run multiple agents in parallel, start or stop tmux-based agents, tail agent logs, or assign tasks to local CLI agents."

Add natural synonyms users would say ("parallel agents", "background agents", "tail agent output") to broaden trigger-term coverage.

Drop "in an explicitly authorized workspace" from the description or fold it into the when-clause, since as written it reads as a precondition rather than a usage trigger.

DimensionReasoningScore

Specificity

"Manage multiple local CLI agents via tmux sessions (start/stop/monitor/assign)" names the domain and enumerates four concrete actions, matching the comprehensive-coverage anchor. It is not 4 because no meaningful action in the skill's scope is left unenumerated.

5 / 5

Completeness

The "what" is clear (manage multiple local CLI agents via tmux: start/stop/monitor/assign), but there is no "Use when..." clause or equivalent explicit trigger; "in an explicitly authorized workspace" states a precondition, not when to reach for the skill. Per the judging guideline a missing trigger clause caps completeness at 3.

3 / 5

Trigger Term Quality

Terms like "tmux sessions", "local CLI agents", "start/stop/monitor/assign", and "workspace" are natural phrases a user would say, but common variations such as "parallel agents", "background agents", or "tail logs" are missing. It fits the good-coverage-with-a-few-missing anchor rather than the comprehensive synonym coverage of 5.

4 / 5

Distinctiveness Conflict Risk

"tmux sessions" plus "local CLI agents" carves a clear niche with distinct triggers and minimal conflict risk, but it could still overlap with generic agent-orchestration or task-delegation skills. It sits between the mostly-distinct (4) and clear-niche (5) anchors, closer to 4.

4 / 5

Total

16

/

20

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository

boisenoise/skills-collections

Path

skills/antigravity-agent-manager-skill/SKILL.md

Reviewed

Table of Contents

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