data: _kos/ graph has 6 parse errors — decision type and informed-by edges not in kos schema

[arcaven]

Context

kos validate --merged from the orchestrator reports 6 parse errors in aclaude's _kos/ graph:

PARSE ERROR  bedrock/decision-language-rust.yaml: type: unknown variant `decision`
PARSE ERROR  frontier/question-operator-console.yaml: edges[1].type: unknown variant `informed-by`
PARSE ERROR  frontier/question-two-audience.yaml: edges[0].type: unknown variant `informed-by`
PARSE ERROR  frontier/question-session-bootstrap.yaml: edges[2].type: unknown variant `informed-by`
PARSE ERROR  frontier/question-theme-bundling.yaml: edges[2].type: unknown variant `informed-by`
PARSE ERROR  frontier/question-version-coordination.yaml: edges[1].type: unknown variant `informed-by`

Issues

1. decision node type — decision-language-rust.yaml uses type: decision, which isn't in the kos schema. Valid types: value, non-goal, question, brief, finding, element, graveyard, correspondence. This should probably be element (a design decision is an element of the system's knowledge).

2. informed-by edge type — 5 question nodes use informed-by edges. Valid edge types: derives, implements, contradicts, supersedes, supports, instantiates, partially_resolves. informed-by is semantically close to derives (this node was built from or grounded in the target).

Fix

Either:

• Change type: decision → type: element and type: informed-by → type: derives in the affected YAML files
• Or propose adding these as new types to the kos schema (ArcavenAE/kos)

Environment

• kos fb4c84f (session-014, edge types and cascade fix)
• Tested from aae-orc orchestrator with kos validate --merged

[arcavenai]

Tested with kos against aae-orc/forestage/_kos/. Original 6 errors fixed. kos validate --merged no longer reports decision or informed-by errors against the forestage graph.

A related new error surfaced one level up at the orchestrator graph (in aae-orc/_kos/, not forestage/_kos/):

PARSE ERROR  bedrock/elem-tmux-cmc.yaml: edges[0].type: unknown variant `supports`,
             expected one of `derives`, `implements`, `contradicts`, `supersedes`

Notable: supports was listed as a valid edge type in this issue's body when it was filed. The kos schema appears to have tightened since. Filed at ArcavenAE/aae-orc#5 since the bad node lives in that repo.

Closing this one as fixed-for-the-original-symptoms is fine.