C3

CLI: C3X_MODE=agent bash <skill-dir>/bin/c3x.sh <command> [args]

• Enforce: c3x = single source. Skill = router: classify -> run c3x -> follow output. No duplicate CLI checklists.
• Agent mode: C3X_MODE=agent -> TOON output (~40% fewer tokens). Commands append help[] hints.
• Entry point: c3x list for topology + coverage, c3x check for validation. --help for help.

Command	Purpose
list	Topology with counts + coverage (--flat, --compact)
check	Validate docs match code (--fix, --only, --include-adr, --only-touched)
add <type> <slug>	Create entity; body via stdin or --file <path> (--container, --feature)
write <id>	Rewrite body or a section (--section <name>, --file <path>, stdin)
set <id> <field> <val>	Update frontmatter field (goal, status, boundary, category, title, date, codemap patterns)
wire <src> <tgt>	Link entities (--remove unlinks)
schema <type>	Section defs for entity type
read <id>	Entity content; agent truncates 1500 chars (--full bypasses)
lookup <file-or-glob>	File/glob -> component + refs
delete <id>	Remove entity + clean refs (--dry-run)
graph <id>	Relationship graph (--depth, `--direction forward

Types for add: container, component, ref, rule, adr, recipe

Authoring: body with mermaid, code fences, or tables -> use --file <path>, not inline strings. Single-sentence text edits -> echo "..." | c3x write <id> --section <name>. Whole-body rewrite -> c3x write <id> --file body.md. Frontmatter fields -> c3x set <id> <field> <value>.

---

Intent Classification

Keywords	Op	Ref
adopt, init, scaffold, bootstrap, onboard, "create .c3"	onboard	references/onboard.md
where, explain, how, diagram, trace, "show me", "what is"	query	references/query.md
audit, validate, "check docs", drift	audit	references/audit.md
add, change, fix, implement, refactor, remove, provision, design	change	references/change.md
pattern, convention, "create ref", "update ref", standardize	ref	references/ref.md
"coding rule", "coding standard", "coding convention", "split ref into rule"	rule	references/rule.md
marketplace, "browse rules", "adopt rule", "install rule from"	rule (Adopt)	references/rule.md
impact, "what breaks", assess, sweep, "is this safe"	sweep	references/sweep.md
recipe, "trace end-to-end", "cross-cutting flow"	query(read) / change(create)	references/query.md / references/change.md

Dispatch

1. Classify op (ambiguous -> AskUserQuestion with options)
2. Load references/<op>.md
3. Execute (Task tool for parallelism)

Precondition

Read-only fast path: for file-owner, "where is", summarize constraints, or smallest-next-action queries that do not mutate docs/code, start with the narrowest c3x lookup <file> or c3x read <id> --section <name>. Skip list and check unless lookup misses, drift is suspected, topology-wide inventory is required, or the user explicitly asks for validation/audit. Prefer section reads. Skip graph unless relationship/dependent impact is part of the answer.

Before every op except onboard:

bash <skill-dir>/bin/c3x.sh list
bash <skill-dir>/bin/c3x.sh check

Missing .c3/ -> onboard. Follow help[] hints in output.

CoT Harness

C3 context loaded. Before touching anything, ask C3 first:

c3x lookup <file-or-glob> -> component docs, refs, constraints. They supersede assumptions.

Context shifts mid-task -> look up again. Topology = source of truth.

ASSUMPTION_MODE

First AskUserQuestion denial -> ASSUMPTION_MODE = true for session.

• Never call AskUserQuestion again
• High-impact: state assumption, mark [ASSUMED]
• Low-impact: auto-proceed

---

Shared Rules

HARD RULE -- .c3/ is CLI-only. NEVER Read/Glob/Edit/Write .c3/ files.

.c3/c3.db = disposable cache, not submitted state. Raw file access bypasses CLI contract -> stale/misleading. ALL access via c3x:

Op	Commands
Create	add
Read	read <id>, list, lookup, graph
Update	write <id>, set, wire (--remove unwires)
Delete	delete
Validate	check, schema

Missing c3x operation -> STOP, tell user. No file-tool workarounds.

Search strategy: code->entity via c3x lookup <file-or-glob>; topology via c3x list; full-text over doc bodies -> grep over .c3/.

c3x check after every mutation (add, write, set, wire, delete). Errors = blockers.

ADR-first for changes: Every change starts c3x add adr <slug> before implementation. (Exception: ref-add creates ADR at completion -- references/ref.md.) ADR = work order. Start with c3x schema adr BEFORE drafting any ADR body. The schema output leads with a REJECT IF block — read it first; the bullets ARE the rejection contract. Per-section fill: and rejected when: lines apply the same gate at section level. Same shape for c3x schema ref and c3x schema rule — REJECT IF first, fill the body to the contract, never draft freehand and reconcile later. Use c3x read <adr> --full and help[] to verify the body still matches the contract. ADR creation is all-or-nothing; thin sections fail at creation, N.A - <reason> for inapplicable rows. list/check exclude ADRs by default; --include-adr only when working on specific ADR. Terminal-state ADRs (status: implemented and status: provisioned) are exempt from c3x check validation — they are historical, content frozen. ADRs cannot be created as implemented; transition proposed → accepted → implemented (direct proposed → implemented is blocked). ADR content historical -- verify against current docs.

Stop if:

• No ADR for change -> c3x add adr <slug> NOW
• Guessing intent -> AskUserQuestion (skip if ASSUMPTION_MODE)
• Jumping to component -> start Context down
• Updating docs without code check

File Context -- MANDATORY before reading/altering any file

1. Lookup:

bash <skill-dir>/bin/c3x.sh lookup <file-path>
bash <skill-dir>/bin/c3x.sh lookup 'src/auth/**'

Run when any file path surfaces. No match = uncharted.

2. Load rules: For every rule-* from lookup:

bash <skill-dir>/bin/c3x.sh read <rule-id>

Extract ## Rule, ## Golden Example, ## Not This. Code MUST match golden pattern. Deviations need Override or new ADR.

3. Parent context: Read upward first:

bash <skill-dir>/bin/c3x.sh read <parent-container-id>
bash <skill-dir>/bin/c3x.sh read <component-id>

Parent responsibilities + membership = integration contract.

4. Graph context:

bash <skill-dir>/bin/c3x.sh graph <parent-container-id> --depth 1
bash <skill-dir>/bin/c3x.sh graph <component-id> --depth 1

Change affects interface -> check consumers first.

Result: Refs + rules + parent + graph = full constraint set. All honored.

New component: Top-down. Container Components + Responsibilities first, then component. Not done until parent has Parent Delta decision.

Navigation: Context -> Container -> Component

Graph Output

Include mermaid when relationships matter:

bash <skill-dir>/bin/c3x.sh graph <entity-id> --format mermaid

Root selection > depth:

• container: components + refs (query, audit, onboard)
• component: constraints + siblings (query, change, sweep)
• ref/rule: citation graph (Usage, sweep)
• --depth 1 default. --depth 2 for cross-container only
• --direction forward = impact. --direction reverse = dependents
• Never graph c3-0 -- one node, no signal

File Structure

.c3/
├── README.md                    # Context (c3-0)
├── adr/adr-YYYYMMDD-slug.md
├── refs/ref-slug.md
├── rules/rule-slug.md
├── recipes/recipe-slug.md
└── c3-N-name/
    ├── README.md                # Container
    └── c3-NNN-component.md

---

Operations

onboard

No .c3/ or re-onboard. Scaffold -> discovery -> inject CLAUDE.md -> show capabilities. references/onboard.md

query

c3x list for topology, c3x lookup <file-or-glob> for code->entity, c3x graph <id> --direction reverse for dependents. Full-text over bodies -> grep over .c3/. references/query.md

audit

c3x check -> c3x list -> semantic phases -> PASS/WARN/FAIL table. references/audit.md

change

ADR first -> c3x list -> affected entities -> c3x lookup files -> fill ADR -> approve -> execute -> c3x check. Provision gate: implement or status: provisioned. references/change.md

ref

Modes: Add / Update / List / Usage. references/ref.md

rule

Modes: Add / Update / List / Usage. references/rule.md

sweep

c3x graph <id> --direction reverse -> transitive deps -> parallel assessment -> synthesize. Advisory only. references/sweep.md