dev

A development workflow for implementing reported issues and applying code-review fixes in a repository.

In plain words
What is it for?
Use it to plan and implement an issue, apply review fixes, run validation, commit the changes, handle quality-assurance labels, and return the required work summary.
Why use it?
It keeps development work tied to the reported problem and includes validation, review-related checks, commits, and a handoff summary. This limits unrelated changes and makes the result easier to verify.

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/vanillagreencom/kendex/dev
Any agent
npx skills add vanillagreencom/kendex --skill dev
Clone the repo
git clone --depth 1 https://github.com/vanillagreencom/kendex

Made for: Claude Code, Codex.

Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,464 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 $0.00016 $0.01464
Opus 5 $0.00008 $0.00732
Sonnet 5 $0.00003 $0.00293
Haiku 4.5 $0.00002 $0.00146

Measured yesterday against content hash 0cfba453f778, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dev 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 yesterday.

The scan reads SKILL.md. This mod also ships 4 executable files (tests/decider-issue-lookup-lint.test.sh, tests/handoff-body-file-lint.test.sh, tests/linear-cache-preflight-contract.test.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.agents/skills/dev/SKILL.md · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Dev Workflows

Problem with this skill? Run kendex report — it files to the owning repo automatically. Do not hand-file.

orch is the caller and runtime: it owns delegation format, round acceptance, and every shell-shape rule.

Workflow Purpose
workflows/dev-implement.md Implementation: activate → plan → implement → validate → commit → QA labels → summary → artifact → return (§ 1-11)
workflows/dev-fix.md Review fixes: evaluate → apply or skip → validate → commit → artifact → return

Review and QA-review belong to the reviewer skill: ../reviewer/workflows/review.md, ../reviewer/workflows/qa-review.md. Command shapes, literal format tags, and round mechanics are orch's: ../orch/SKILL.md § Harness-Safe Shell, § Format Tags Are Literal, § Round Closure.

Engineering Rules

  • Scope is the reported symptom. Every behavioral surface a change touches must trace to a line in the report — if you cannot name that line, keep it out of this change. Two exceptions: mechanical enablers of landing it (locks, changelog, baselines, dismissal renewals) ride without a line, and a defect the change introduces or arms is in scope by definition.
  • Prefer deleting code to abstracting it. Three similar lines beat a premature abstraction. A new dependency needs a one-line justification in its commit message.
  • Every behavior change ships with a test that fails without it.
  • An else that "shouldn't happen" is a bug: assert or return an error, never continue silently.
  • Plain words over jargon: name things by what they do. Comments say why, never what or when — no temporal markers, no references to the change that wrote them. Commit bodies explain intent, never narrate the diff.
  • Delete unused code completely — no compat shims, no _renamed vars, no "removed" comments.
  • Never re-implement a judgment another component owns — delegate. Delegation impossible = design escalation in your return, never a twin.
  • Stale docs are bugs: contradicting a committed doc means updating it in the same change.

Read the full file on GitHub · 73 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. yesterday First seen · 73 lines · 16 tokens per session scan A 0cfba453f778

Subscribe to this mod's changes

dev is a skill published in the GitHub repository vanillagreencom/kendex (65 stars, last pushed yesterday), licensed MIT. It adds 16 tokens to every session and 1,464 once invoked, about $0.0001 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 2026-08-30.

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