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BD harness-engineering

Design, build, diagnose, and evolve agent harnesses: instructions, tools, execution environments, durable state, context management, verification, recovery, bounded autonomous loops, and software factories that repeatedly turn incoming work into accepted deliverables. Use for director/worker production systems, factory steering, unreliable coding agents, cross-session drift, premature completion, harness audits, or changes to the runtime around a model, including bounded typed-decision routing. Do not use for prompt rewriting alone, model training, general application architecture, or operating an already evaluated agent in production; route those concerns to their specialist skills.

magnus919/agent-skills Agent Skills author: magnus919 MIT 80 files · 10 scripts body ≈ 4 801 tokens Open the sourcegithub.com↗ analyzed 7 d ago

Design, build, diagnose, and evolve agent harnesses: instructions, tools, execution environments, durable state, context management, verification, recovery…

As a process D 47/100 · Unfinished process — References files that are not bundled: ../multi-agent-coordination/SKILL.md, templates/harness-contract.md, ../systematic-debugging/SKILL.md

AnalyzerAI and agentstype and topics are labelled automatically from the skill text
Runs in: Claude / Claude Code ChatGPT / Codex Gemini CLI Cursor GitHub Copilot / VS Code Qwen Code Kimi Code CLI Z.ai (GLM) DeepSeek (Deep Code) Mistral Vibe LangChain (deepagents) OpenClaw Goose OpenCode
JSON
Technical rating
B
91/100
safety, quality, tests
Safety 60%
100
Quality 40%
78
Run on models
none yet
Process rating
D
47/100
Unfinished process
References files that are not bundled: ../multi-agent-coordination/SKILL.md, templates/harness-contract.md, ../systematic-debugging/SKILL.md
Tools and files w 18
0
Inputs and preconditions w 11
0
Running it twice w 4
30
the three weakest of ten parameters · all ten

How to improve

  1. The text references files that are not there: add them or drop the references.
For the model run — optional
  • A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.

Guard findings · 0

✓ No critical or high findings

Files scanned: 60. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

  • warning missing-ref reference to a missing file: ../multi-agent-coordination/SKILL.md
  • warning missing-ref reference to a missing file: templates/harness-contract.md
  • warning missing-ref reference to a missing file: ../systematic-debugging/SKILL.md
  • warning missing-ref reference to a missing file: templates/lesson-candidate.md
  • warning missing-ref reference to a missing file: templates/session-protocol.md
  • warning missing-ref reference to a missing file: templates/guardrail-promotion.md
  • warning missing-ref reference to a missing file: templates/state.json
  • warning missing-ref reference to a missing file: templates/recovery-drill.md
  • warning missing-ref reference to a missing file: templates/runtime-design.md
  • warning missing-ref reference to a missing file: templates/tool-contract.json
  • warning missing-ref reference to a missing file: templates/observability-plan.md
  • warning missing-ref reference to a missing file: templates/run-record.json
  • warning missing-ref reference to a missing file: templates/loop-contract.md
  • warning missing-ref reference to a missing file: templates/graph.json
  • warning missing-ref reference to a missing file: templates/factory-charter.md
  • warning missing-ref reference to a missing file: templates/factory-role.md
  • warning missing-ref reference to a missing file: templates/factory-change.md
  • warning missing-ref reference to a missing file: templates/factory-snapshot.json
  • warning missing-ref reference to a missing file: templates/factory-batch-record.md
  • warning missing-ref reference to a missing file: templates/handoff.md
  • warning missing-ref reference to a missing file: ../langgraph/SKILL.md
  • warning missing-ref reference to a missing file: ../pydanticai/SKILL.md
  • warning missing-ref reference to a missing file: ../autogen/SKILL.md
  • warning missing-ref reference to a missing file: ../agent-evals-and-observability/SKILL.md
  • warning missing-ref reference to a missing file: ../agent-production-operations/SKILL.md
  • warning missing-ref reference to a missing file: ../agent-skills/SKILL.md
  • warning missing-ref reference to a missing file: ../secure-software-engineering/SKILL.md
  • warning missing-ref reference to a missing file: ../ai-governance/SKILL.md
  • warning missing-ref reference to a missing file: ../spec-driven-development/references/executable-business-policy.md
  • warning missing-ref reference to a missing file: ../spec-driven-development/templates/BUSINESS-POLICY.md

Process rating: all ten parameters 47/100

Will not run. References files that are not bundled: ../multi-agent-coordination/SKILL.md, templates/harness-contract.md, ../systematic-debugging/SKILL.md
  • 0Tools and files. 30 referenced file(s) missing: ../multi-agent-coordination/SKILL.md, templates/harness-contract.md, ../systematic-debugging/SKILL.md
  • 0Inputs and preconditions. Does not say what the process needs to start
  • 30Running it twice. 3 mutating operations with no state check
  • 40Result and completion. Does not say what the result is
  • 50When it triggers. No condition that starts the skill
  • 50Failures and branches. 0 branches, has a failure section
  • 70Execution cost. Instruction body is 4801 tokens
  • 100Steps. 12 steps
  • 100Consistency. Name and required fields are in place
  • 100Progress reporting. Reports progress
  • low 12 top-level sections: this looks like several domains in one skill

Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.

Quality signals

  • +5Description has no quoted example phrases that should trigger the skill
  • +3Output format is not stated: the model decides each time
  • -36 of 10 scripts are never mentioned in SKILL.md
  • +2Single-language instructions
  • +4Description says when NOT to use the skill
  • +3Description length 692: enough signal without eating the budget
  • +4Structure: 13 headings
  • +3Step-by-step instructions: 12 items
  • +4Has examples (3 code blocks)
  • +4Reference files are cited in the instructions (37 of 38)
  • +1License stated

Quality base 70; lint remarks subtract, signals add up to 100. Result: 78.