Extract the method: value from YAML frontmatter in a markdown string.
Analysis files produced by the pipeline embed the canonical method ID in
their frontmatter (e.g. method: coalition-analysis). When this differs
from the filename (e.g. coalition-dynamics.md), the frontmatter value is
the authoritative key for strategy lookups.
Parameters
content: string
Raw markdown content
Returns string|null
The frontmatter method value, or null if absent/unparseable
Extract the
method:value from YAML frontmatter in a markdown string.Analysis files produced by the pipeline embed the canonical method ID in their frontmatter (e.g.
method: coalition-analysis). When this differs from the filename (e.g.coalition-dynamics.md), the frontmatter value is the authoritative key for strategy lookups.