Compose GitHub spec-kit, Ouroboros (ooo), and HKUDS CLI-Anything into one spec-driven delivery stack — Write → Freeze → Run, verified. Author the spec with `/speckit.*`, freeze it as an immutable ooo seed with machine-checkable acceptance criteria, arm the loop with agent-native CLI harnesses from CLI-Hub (`--json` output as evaluate evidence), and loop until verification passes. Routes three patterns — full-stack (spec-kit → ooo → cli-anything), loop-only (ooo), docs-only (spec-kit) — with explicit anti-patterns (two spec SSOTs, harness-first builds, seedless ralph loops). Use when the user wants spec-to-verified-artifact delivery, wants spec-kit and ooo to work together without fighting, or needs real software driven inside a verified loop. Triggers on: spec-stack, spec stack, write freeze run, spec to verified, speckit + ooo, ooo + cli-anything, spec-driven loop, verified delivery stack, seed with tools.
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name
spec-stack
description
Compose GitHub spec-kit, Ouroboros (ooo), and HKUDS CLI-Anything into one spec-driven delivery stack — Write → Freeze → Run, verified. Author the spec with `/speckit.*`, freeze it as an immutable ooo seed with machine-checkable acceptance criteria, arm the loop with agent-native CLI harnesses from CLI-Hub (`--json` output as evaluate evidence), and loop until verification passes. Routes three patterns — full-stack (spec-kit → ooo → cli-anything), loop-only (ooo), docs-only (spec-kit) — with explicit anti-patterns (two spec SSOTs, harness-first builds, seedless ralph loops). Use when the user wants spec-to-verified-artifact delivery, wants spec-kit and ooo to work together without fighting, or needs real software driven inside a verified loop. Triggers on: spec-stack, spec stack, write freeze run, spec to verified, speckit + ooo, ooo + cli-anything, spec-driven loop, verified delivery stack, seed with tools.
allowed-tools
Bash Read Write Edit Glob Grep WebFetch
compatibility
Cross-platform composition wrapper usable from Claude Code, Codex, Gemini CLI, Cursor, opencode, and any runtime where the three upstream tools install. Routes spec authoring detail to `spec-kit`, loop/seed mechanics to `ooo`, harness generation to `cli-anything`, packet-first artifact selection to `bmad`, and plan approval to `plannotator`.
Agent-native CLIs for real software — CLI-Hub registry, --json output, artifact-level verification
The stack's one rule: spec-kit writes, ooo freezes and loops,
cli-anything is the hands. Each layer hands a concrete artifact to the
next — spec.md/plan.md feed the seed interview, the seed names the
harnesses the loop may use, and harness --json output is the evidence
the evaluate step accepts.
When to use this skill
The user wants the full path from a written spec to a verified
artifact, not just one of the three tools
The user asks how spec-kit and ooo should work together (which owns
the spec, which owns completion) or how to avoid duplicating the spec
The implementation must drive real software (image/video/office/3D/
GIS/game tooling) inside a verified loop instead of one-shot codegen
The user says "spec-stack", "write freeze run", or names two or more of
spec-kit, ooo, cli-anything in one workflow
When not to use this skill
Only authoring SDD documents for one or more agents → use spec-kit
Only a verify-until-done loop with no document artifacts → use ooo
Only installing or generating a CLI harness → use
cli-anything
Deciding which planning artifact comes next (brief, PRD,
architecture) → use bmad
Human review/approval of an existing plan or diff → use plannotator
Prerequisites
Requirement
Notes
Python 3.11+
specify-cli requires 3.11+; CLI-Hub needs 3.10+
uv (recommended) or pipx/pip
Used by scripts/install.sh for all three tools
One supported AI agent
Claude Code, Codex, Gemini, Cursor, opencode, …
Target software (pattern A)
Harnesses call the real backend — install the upstream app too
Instructions
Step 0 — Choose the composition pattern
Pattern
When
Layers
A — full-stack
Medium+ work that touches real software and needs both shared docs and a verified loop
spec-kit → ooo → cli-anything
B — loop-only
Single-session "keep going until verified" with no document deliverable
ooo (+ cli-anything if software is involved)
C — docs-only
Multi-agent/team needs the .specify/ artifacts; completion is enforced elsewhere
spec-kit
If the user has not stated a pattern, default to A when external software
or acceptance evidence is involved, B for code-only persistence, C for
documentation handoffs.
On Claude Code, prefer the ooo plugin instead of pip:
claude plugin marketplace add Q00/ouroboros. Verify with
specify --version, cli-hub list, and ouroboros --help (or the
ouroboros_* MCP tools).
Step 2 — Write the spec (spec-kit)
specify init . --integration claude
Then inside the agent: /speckit.constitution → /speckit.specify →
/speckit.clarify (only if open questions remain). Stop before
/speckit.implement — implementation belongs to the loop layer in
pattern A. Write success criteria as machine-checkable statements
("output PNG is 1024×1024, verified by pixel inspection"), not vibes
("image looks right") — Step 3 and Step 5 depend on this.
Step 3 — Freeze the contract (ooo)
Feed spec.md/plan.md into the ooo interview (brownfield weighting),
drive ambiguity ≤ 0.2, then generate the immutable seed:
ouroboros interview --context .specify/ # or MCP: ouroboros_interview
ouroboros seed generate # or MCP: ouroboros_generate_seed
Two seed rules that make the stack work:
Success criteria mirror the spec's acceptance criteria in
machine-checkable form — the evaluate step will demand evidence.
Constraints name the tools: e.g. "image operations go through the
cli-anything-gimp harness; GUI automation is out of contract." This
turns tool drift into measurable spec drift.
The seed is the execution SSOT from here on; spec.md stays the document
SSOT. Direction is one-way: spec-kit → seed. If requirements change,
update the spec first, then re-freeze.
Step 4 — Arm the tools (cli-anything)
Before writing integration code, search the registry:
cli-hub search <keyword> # 40+ harnesses exist — seconds, not a session
cli-hub install <name> # install the harness + the upstream app
Only when the registry has no match, generate: /cli-anything <path-or-repo>
(7-phase pipeline), then /cli-anything:refine as needed. Generation is
the fallback, never the default.
Step 5 — Run the loop
ouroboros run # or MCP: ouroboros_execute_seed; ralph for persistence
ouroboros evaluate # or MCP: ouroboros_evaluate
In the evaluate step, verify artifacts, not exit codes: use the
harness --json output, magic bytes, document structure, or pixel/audio
checks as evidence — the same discipline cli-anything's own test suite
uses. On failure the loop continues; on repeated failure use ooo's
unstuck step instead of blind retries. Pattern A users who want the
spec-kit task list can run /speckit.implement per task inside the loop
— the seed still gates completion.
# Project install (writes into .agents/skills/spec-stack/)
npx skills add https://github.com/akillness/oh-my-skills --skill spec-stack
# Global install for every detected agent
npx skills add -g https://github.com/akillness/oh-my-skills --skill spec-stack
# Target specific agents
npx skills add -g https://github.com/akillness/oh-my-skills --skill spec-stack -a claude-code -a codex -y
Installing spec-stack does not auto-install the three layer skills;
install whichever you lack the same way (--skill spec-kit, --skill ooo,
--skill cli-anything).
Output format
When the user asks spec-stack for help, return a compact brief:
# spec-stack Routing Brief## Scope- Pattern: full-stack | loop-only | docs-only
- Target software: <name> | none | undecided
- Stack state: nothing-installed | spec-written | seed-frozen | tools-armed | loop-running
## Recommended next move- install-stack | specify-init | write-spec | freeze-seed | hub-search | run-loop | evaluate
## Why- 2-3 bullets grounded in the user's packet
## Route-outs-`spec-kit` / `ooo` / `cli-anything` for single-layer work
-`bmad` for choosing the next planning artifact
-`plannotator` for human plan approval before implement
Examples
Example 1 — Pattern A end to end (image pipeline against real software)
bash scripts/install.sh # specify-cli + cli-anything-hub
specify init . --integration claude # spec layer# in the agent: /speckit.constitution → /speckit.specify → /speckit.clarify
ouroboros interview --context .specify/ # loop layer: drive ambiguity ≤ 0.2
ouroboros seed generate # freeze; criteria mirror spec.md
cli-hub search image && cli-hub install gimp # tool layer: registry first
ouroboros run # implement against the seed
ouroboros evaluate # verify --json artifacts, loop on fail
Example 2 — Routing a vague combined request
User: "spec-kit이랑 ooo 같이 쓰고 싶은데 어디서부터?"
→ Return the Routing Brief with Pattern: full-stack,
Stack state: nothing-installed, Recommended next move: install-stack,
and route-outs left intact. Do not start /speckit.implement — in
pattern A completion belongs to the ooo loop.
Example 3 — Near-miss that should route out
User: "GIMP용 CLI 하니스만 만들어줘" → single-layer work; hand off to
cli-anything (registry search first), no seed or spec ceremony.
Best practices
One SSOT per concern — spec.md is the document SSOT, seed.yaml the
execution SSOT, flowing one way. Running both pipelines fully in
parallel creates two competing specs.
Registry before generation — cli-hub search costs seconds; a
7-phase harness build costs a session.
Machine-checkable acceptance criteria — write them in
/speckit.specify, mirror them in the seed, demand them in evaluate.
Name tools in seed constraints — uncontracted tool choice is
invisible drift.
No ralph without a seed — a persistent loop without verification
criteria runs "until tired", not "until done". Seed first, loop second.
Hand the plan to plannotator before implement on level 2+ work;
the approval gate sits between Step 3 and Step 5.
