devlog

devlog is a skill for Claude Code, Codex from wunki/dotfiles. It costs 89 tokens per session (1,746 once invoked), scanned A, original, MIT.

A project log maintained in a file named DEVLOG.md. It records what happened during development so the project can be understood and resumed later.

In plain words
What is it for?
Use it to start, update, summarize, continue, or resume a developer log before or after a coding session.
Why use it?
It prevents important context, decisions, and discoveries from being lost between work sessions. It also helps an agent catch up on previous work.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to start, update, summarize, continue, or resume a developer log before or after a coding session.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wunki/dotfiles/devlog
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.

Any agent
npx skills add wunki/dotfiles --skill devlog
Clone the repo
git clone --depth 1 https://github.com/wunki/dotfiles

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for devlog

README.md
[![agentmods](https://agentmods.dev/badge/skills/wunki/dotfiles/devlog/github.svg)](https://agentmods.dev/skills/wunki/dotfiles/devlog)
Your own site
<a href="https://agentmods.dev/skills/wunki/dotfiles/devlog"><img src="https://agentmods.dev/badge/skills/wunki/dotfiles/devlog/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for devlog

Your own site · 80×15
<a href="https://agentmods.dev/skills/wunki/dotfiles/devlog"><img src="https://agentmods.dev/badge/skills/wunki/dotfiles/devlog.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 89 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,746 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00089 $0.01746
Opus 5.5 $0.00036 $0.00698
Sonnet 5.5 $0.00018 $0.00349
Haiku 4.5 $0.00009 $0.00175

Measured 1mo ago against content hash ee66691c998c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

devlog 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 1mo 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.

agents/skills/devlog/SKILL.md · 202 lines

How it starts

The opening of the file, as written. The whole thing — 202 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Devlog

Update the project's DEVLOG.md so it captures what the user did, learned, decided, and where to continue next. Also use DEVLOG.md to help the user jump back into a project by summarizing recent context and recommending the next concrete action.

This is not a generic changelog. It is a personal working journal with concrete shipped details and reflective notes. Treat it as both an end-of-session memory and a start-of-session handoff.

Discovery

  1. Find the target devlog:
    • Prefer an explicitly referenced @DEVLOG.md / path from the user.
    • Otherwise use DEVLOG.md in the current working directory.
    • If no obvious target exists, search upward from cwd; if still unclear, ask.
  2. Read the existing DEVLOG.md before writing.
  3. Gather evidence from the real work:
    • git status --short
    • git diff --stat
    • git diff
    • git diff --cached
    • recent commits if relevant: git log --oneline --decorate -5
    • the current conversation/session context
    • project docs or tests only when needed to understand the change
  4. Do not invent facts. If an important detail is missing, ask the user instead of filling it in.

Resume Workflow

Use this workflow when the user asks things like "where were we?", "catch me up", "resume this project", "what should I do next?", "read the devlog", or devlog resume.

  1. Find and read the target DEVLOG.md using the discovery rules above.
  2. Read the latest entry first. Include earlier entries only if they clarify context or the latest entry is too thin.
  3. Optionally inspect current repo state when useful:
    • git status --short
    • git diff --stat
    • recent commits: git log --oneline --decorate -5
  4. Summarize the current project state in the user's language:
    • what was last shipped or made real
    • what was learned
    • decisions that still matter
    • gotchas or blockers
    • the current mental model, if one is present
  5. Extract the actionable continuation items, especially NEXT, BLOCKED, and RESEARCH bullets.
  6. Recommend the first concrete next action. Prefer one small step that can be started immediately.
  7. If repo state conflicts with the devlog, call that out plainly before recommending next steps.

Read the full file on GitHub · 202 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. 1mo ago First seen · 202 lines · 89 tokens per session scan A ee66691c998c

Subscribe to this mod's changes

devlog is a skill published in the GitHub repository wunki/dotfiles (47 stars, last pushed 10d ago), licensed MIT. It adds 89 tokens to every session and 1,746 once invoked, about $0.0004 per session on Opus 5.5. 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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