writing-plans is agent-read markdown (skill) from ganyuanran/aegis: Use when you have an approved spec or written requirements for a multi-step task that needs a durable plan document before touching code. Small, single-owner, or fast-path tasks do not need this skill..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
<EXPLICIT-MODE-GATE>
If activation mode is explicit (`~/.config/aegis/config.toml` has
`activation_mode = "explicit"`, or `AEGIS_ACTIVATION_MODE=explicit` is visible
in the environment) and the current user request did not explicitly invoke
Aegis or this skill by name, exit back to the fast path: answer concisely
without this workflow's checklist, ceremony, or document requirements. If the
user explicitly named Aegis or this skill, proceed normally.
</EXPLICIT-MODE-GATE>
# Execute
→ Existing parent plan/spec and a tiny execution slice? → **Use Planless Slice Lane.**
→ Mechanical or bounded change with no durable boundary (no new owner,
contract, schema, public API, migration, or compat surface)? → **Use
Planless Slice Lane without a parent document.**
→ Approved spec/requirements for a new workstream or an escalation trigger? →
**Write an implementation plan for an engineer with no prior task context.**
For a durable plan: confirm scope and acceptance, map current owners/files,
record the TDD route, decompose into executable tasks, define verification and
retirement, self-review, save, then select the execution route. Proceed unless
…
Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
A 17 of 17 checks passed. Deterministic, no model, same answer every run.
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (12910 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag
Source
GitHub
ganyuanran/aegis · 1,280 stars · license MIT · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mmaxz4b2cqokvynq
GET https://markdownregistry.com/api/v1/resolve?ref=ganyuanran/aegis/writing-plans
GET https://markdownregistry.com/api/v1/blob/003711eeb5ab95a5935dfc795e7fc2af67ea2613932036fc5d44ed7c68e4f60b
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
ganyuanran/aegis · skills/brainstorming/SKILL.md · Use when defining ambiguous or high-complexity new features, product behavior, UI/component design, architecture…
ganyuanran/aegis · skills/communicating-concisely/SKILL.md · Use when the user asks for caveman mode, fewer tokens, brief responses, compressed communication, or otherwise…
ganyuanran/aegis · skills/dispatching-parallel-agents/SKILL.md · Use when facing 2+ independent tasks without a written plan, with no conflicting shared mutable state or sequential…
ganyuanran/aegis · skills/establishing-project-context/SKILL.md · Use when the user asks to establish shared project language, or project work exposes a conflicting, renamed, or…
ganyuanran/aegis · skills/executing-plans/SKILL.md · Use when executing a written implementation plan across sessions or with review checkpoints. Small or single-slice…
ganyuanran/aegis · skills/finishing-a-development-branch/SKILL.md · Use when verified work needs integration or cleanup of an existing task-created branch/worktree, or the user explicitly…
ganyuanran/aegis · skills/first-principles-review/SKILL.md · Use when asked for first-principles or Occam's-razor review, or when high-risk decisions involve competing constraints…
ganyuanran/aegis · skills/goal-framing/SKILL.md · Use when the user explicitly sets an Aegis goal with /aegis-goal, Aegis goal:, or asks to define goal, success…
ganyuanran/aegis · skills/long-task-continuation/SKILL.md · Use when a task is multi-step, may span context resets or sessions, uses subagents, or risks losing state before…
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arbiterforge/codearbiter · plugins/ca-codex/routines/writing-plans/SKILL.md · The spec-to-plan bridge. /feature supplies an approved spec; initial full-lane HTML sprint review may supply a ready…
