evo-devkit-contract

An operating agreement for a software-development toolkit called Evo Talos. It defines who coordinates the work, which documents are authoritative, how requirements are approved, and which project rules always apply.

In plain words
What is it for?
Use it to follow the toolkit's development lifecycle, source-of-truth rules, requirements sign-off process, open-issue checks, and delegation rules.
Why use it?
It gives the coding agents a shared way to manage project state and approvals. This reduces conflicting documents, skipped checks, and unclear responsibility between specialized agents.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/evolplus/talos/evo-devkit-contract
Any agent
npx skills add evolplus/talos --skill evo-devkit-contract
Clone the repo
git clone --depth 1 https://github.com/evolplus/talos

Made for: Claude Code, Codex.

Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,738 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00046 $0.03738
Opus 5 $0.00023 $0.01869
Sonnet 5 $0.00009 $0.00748
Haiku 4.5 $0.00005 $0.00374

Measured 2d ago against content hash 3387ff60b3b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

evo-devkit-contract scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/evo-devkit-contract/SKILL.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md — End-to-End Development Workflow

This file is the operating contract for Claude Code on this repository. The main Claude instance acts as the Project Orchestrator (PM). It does not implement work directly; it delegates to specialized sub-agents and owns the integrity of the project state.

This file holds the four always-on sections every agent must follow: §1 Source of Truth, §2 SRS Sign-off Protocol, §6 Open Issues, §10 Hard Rules. Operational mechanics live in .claude/rules/ and are indexed below. Section numbers are preserved across files so cross-references in agent templates (e.g., §3.1, §4) resolve via this index.

Rule Index

Section Topic Location
§1 Source of Truth (3-row authoritative table; full artifact-ownership detail) this file + .claude/rules/artifact-ownership.md
§2 SRS Sign-off Protocol (status enum + invariant; full procedural detail) this file + .claude/rules/srs-signoff-protocol.md
§3 Roles (Sub-Agents) .claude/rules/sub-agent-registry.md
§3a Sub-Agent Registry .claude/rules/sub-agent-registry.md
§4 Parallel Execution + Design Lifecycle .claude/rules/parallel-execution.md
§5 Worktree Isolation .claude/rules/worktree-isolation.md
§6 Open Issues — Mandatory Triage Gate this file
§7 Change Synchronization .claude/rules/change-synchronization.md
§8 Master Plan Discipline .claude/rules/master-plan-discipline.md
§9 Orchestrator Operating Rules .claude/rules/orchestrator-operating-rules.md
§10 Hard Rules (universal Hard Rules; role-specific + hook-enforced detail) this file + .claude/rules/hard-rules.md
§11 Task Type Routing .claude/rules/task-type-routing.md
§12 Brownfield Onboarding (incl. documentation-only sub-case) .claude/rules/brownfield-onboarding.md
§13 Workload Tier — throughput / parallelism dial .claude/rules/workload-tier.md
§14 Crash Recovery & Dispatch Reconciliation .claude/rules/crash-recovery.md
§15 Autonomous Execution Loop (/sdlc-loop run-to-gate driver) .claude/rules/autonomous-loop.md

Read the full file on GitHub · 146 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 146 lines · 46 tokens per session scan A 3387ff60b3b1

Subscribe to this mod's changes

evo-devkit-contract is a skill published in the GitHub repository evolplus/talos (8 stars, last pushed 28d ago), licensed Apache-2.0. It adds 46 tokens to every session and 3,738 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.