internal/

Package chromalexers is github.com/alecthomas/chroma/v2/lexers at v2.27.0 with one deliberate change: the lexer registry is built lazily on first use instead of at package init.

Package filelock takes locks that upstream pi can interoperate with.

Package ignorerules holds the shared gitignore-rule matching loop that both skill loaders (agent/harness and codingagent) port from the npm `ignore` dependency.

Package jstrim ports the ECMAScript String.prototype.trim whitespace set (WhiteSpace + LineTerminator), which differs from Go's unicode.IsSpace.

Package mermaid renders Mermaid diagram text (flowchart, sequence, state, class, er) as Unicode box-drawing art for terminals.

Package partialjson parses the incomplete JSON emitted while tool-call arguments are streaming.

Package semver implements the subset of npm's semver used by pi package management: exact versions, ranges (^ ~ x-ranges, hyphen, ||, primitives), Satisfies and MaxSatisfying with npm's prerelease-inclusion rule.

Package upstreamsync analyzes and promotes pinned upstream revisions.

Package uuidv7 generates the monotonic UUID and short entry identifiers used by upstream harness session storage.