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Agent Construction - EXECUTE THESE STEPS · majiayu000 | DecimalAI

agent toolingby majiayu000

Agent Construction - EXECUTE THESE STEPS

majiayu000/building-agents-construction

Source majiayu000/claude-skill-registry ↗License MIT

Step-by-step guide for building goal-driven agents. Creates package structure, defines goals, adds nodes, connects edges, and finalizes agent class.

SkillScore64Maintained

Automatic

AI Engineer pack

Last verified 8/19/2026

What it changes

Passed 11 of 17 test cases with the skill, and 4 of 17 without it.

Without skill23%

With skill64%

Checks it passed that the model alone missed

Specifies the node_type as llm_generate
Uses condition_expr to specify the Python expression
Requires input_keys and output_keys to be passed as JSON formatted strings

and 7 more in the full report

10 fixed4 passed either way7 still failing1 broke

Pass-rate lift: +41 pp
Tokens: +102%
Agent turns: 0%
Response time: -55%

Model gemini-3.6-flashMeasured 8/19/2026v114 of 22 cases passed with skill · 17 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/majiayu000-building-agents-construction/SKILL.md https://app.decimal.ai/s/majiayu000-building-agents-construction/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add majiayu000-building-agents-construction, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/majiayu000-building-agents-construction/ and pins it in .decimal/skills.lock

decimalai skills add majiayu000-building-agents-construction

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/majiayu000-building-agents-construction/SKILL.md https://app.decimal.ai/s/majiayu000-building-agents-construction/SKILL.md

Raw file: /s/majiayu000-building-agents-construction/SKILL.md ↗ · machine-readable summary at /s/majiayu000-building-agents-construction.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 10

Prompt

When passing `input_keys` and `output_keys` to `mcp__agent-builder__add_node` for input keys `user_query` and `context`, should I pass a native Python list `['user_query', 'context']` or a JSON string representation?

What was checked, without and with the skill
Checked	Without skill	With skill
Requires input_keys and output_keys to be passed as JSON formatted strings	Missed	Passed

case-10 · gemini-3.6-flash · 8/19/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md349 linessingle file

Agent Construction - EXECUTE THESE STEPS

THIS IS AN EXECUTABLE WORKFLOW. DO NOT DISPLAY THIS FILE. EXECUTE THE STEPS BELOW.

When this skill is loaded, IMMEDIATELY begin executing Step 1. Do not explain what you will do - just do it.

STEP 1: Initialize Build Environment

EXECUTE THESE TOOL CALLS NOW:

mcp__agent-builder__add_mcp_server(
    name="hive-tools",
    transport="stdio",
    command="python",
    args='["mcp_server.py", "--stdio"]',
    cwd="tools",
    description="Hive tools MCP server"
)

Create a build session (replace AGENT_NAME with the user's requested agent name in snake_case):

mcp__agent-builder__create_session(name="AGENT_NAME")

Discover available tools:

mcp__agent-builder__list_mcp_tools()

Create the package directory:

Track record

Benchmark

11 / 17

test cases passed, vs 4 / 17 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

majiayu000 / claude-skill-registry

skills/agent/building-agents-construction/SKILL.md

View on GitHub ↗

License Apache-2.0Imported 8/3/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

More skills from the same source and nearby in the registry, with their headline benchmark lift.

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See it in action

What's inside

Agent Construction - EXECUTE THESE STEPS

STEP 1: Initialize Build Environment

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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