easd-implement

A procedure for implementing a bounded change during an authorized EASD run. EASD is a controlled development workflow whose accepted specification and approval state define what may be changed.

In plain words
What is it for?
Making only the changes allowed by an accepted EASD specification, plan, mission, and scope, while stopping if required contracts or runtime authority are missing or stale.
Why use it?
Implementation can drift from the approved requirements when the current specification, ownership, or repository rules are unclear. This procedure checks those contracts before and during the work.

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/evoelsewhere/evoflux/easd-implement
Any agent
npx skills add evoelsewhere/evoflux --skill easd-implement
Clone the repo
git clone --depth 1 https://github.com/evoelsewhere/evoflux

Made for: Claude Code, Codex.

Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 861 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 $0.00051 $0.00861
Opus 5 $0.00026 $0.00430
Sonnet 5 $0.00010 $0.00172
Haiku 4.5 $0.00005 $0.00086

Measured 2d ago against content hash 24e15cf3f1ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

easd-implement 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.

.evoflux/skills/easd-implement/SKILL.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Implement an active EASD run

Repository contract

Read .evoflux/easd/config.json and its rules_file before phase work. Treat the injected EASD context as the authoritative current Run; when the owning runtime is accessible, corroborate it under runtime_directory. An isolated worktree intentionally has no checkout-local runtime copy. Resolve the accepted Spec through the common specs/ index and confirm it matches the Run snapshot. Use features/, architecture/, and reference/ only for living knowledge the accepted change actually affects; existing external docs remain in place. Repository documents are the shared source of truth. Stop on a missing tracked contract, stale hash, generation conflict, or unavailable injected runtime; never reconstruct authority from chat memory or a stale database-only projection. For planned, bind work to the accepted Plan mission. For direct, bind only to accepted Spec/AC/scope and never invent a Plan identity.

Implement only the active accepted contract and the mission or ownership scope assigned to this agent. EvoFlux runtime checks remain authoritative even when this skill is active.

State gate

Before each implementation or resumed turn, re-read the injected run ID, active status, accepted Spec hash, delivery flow, and mission contract. For planned flow, also re-read the accepted Plan hash/mission and stop if either is absent or stale. For direct flow, stop if any Plan identity is claimed. Stop if the mission was cancelled/reworked or durable context is unavailable. Record the dirty-worktree baseline so user/peer changes are not claimed as this output.

Execution discipline

  1. Confirm the injected run ID, spec hash, owned ACs, target repositories and paths, dependencies, constraints, and evidence policy before mutation.
  2. Read the nearest applicable AGENTS.md and existing implementation/tests. Preserve unrelated and concurrent work in the shared repository.
  3. Make the smallest coherent change that satisfies the owned ACs. Keep public contracts, persistence, security, and compatibility aligned across affected layers.
  4. For an observable behavior change or bug, add the focused regression first when practical and confirm it fails for the expected missing behavior. Make the minimal implementation, confirm the regression passes, then refactor only while it stays green. When test-first is inapplicable, record the alternate baseline/evidence instead of pretending a red-green cycle occurred.
  5. Run the focused accepted verification commands that are safe and available, plus boundary-specific regression checks required by repository instructions. Prefer canonical commands from AGENTS.md, project manifests/task runners, CI, and existing test configuration over invented shell pipelines. Read the fresh output and exit status before making any pass claim; an unavailable or unknown required command is an evidence gap, not an implicit pass.
  6. Report changed paths, checks and exact outcomes, evidence gaps, and each owned AC result. A task checkbox, handoff, or agent confidence is progress—not trusted evidence—and must not be presented as convergence.

Read the full file on GitHub · 74 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 74 lines · 51 tokens per session scan A 24e15cf3f1ba

Subscribe to this mod's changes

easd-implement is a skill published in the GitHub repository evoelsewhere/evoflux (5 stars, last pushed 6d ago), licensed Apache-2.0. It adds 51 tokens to every session and 861 once invoked, about $0.0003 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.

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