feat(docs): write 6 north_reach star system wiki pages (hops 5-6)

Replace PLACEHOLDER stubs with full prose for: Fenwick's Lantern
(GJ-285), Dunmore Stillwater (GJ-300), Uusi Vantaa (GJ-3820),
Harrowfield (GJ-588), Kelburn Crossing (GJ-216A), Greymantle (GJ-638).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

wiki/star-systems/GJ-216A/index.md

@@ -1,4 +1,4 @@
-# PLACEHOLDER_268
+# Kelburn Crossing
 **GJ 216A** | G-type | north_reach
 
 ---
@@ -14,20 +14,55 @@
 
 ---
 
+## Overview
+
+Kelburn Crossing was named for the suburb of Wellington where the founding expedition's leader, Aroha Kelburn-Singh, had grown up before emigrating to the Reach in Wave 2. The name was a private joke — Wellington's Kelburn is a cable car route, and Kelburn-Singh liked the idea of a crossing point named after a crossing point. The joke outlasted her by four centuries.
+
+GJ 216A's F7V star burns warm and steady, producing a primary world with long days and a quality of light that settlers found generous after the dim red systems that dominate the outer north_reach. The world itself is temperate at mid-latitudes, with rolling scrubland that reminded Commonwealth-heritage arrivals of the Australian interior and New Zealand-heritage arrivals of the Canterbury Plains. Neither comparison is precise. The soil is thin, the wind is persistent, and the vegetation — such as it is — grows low to the ground in dense mats of grey-green that turn bronze in the long summer. People who visit from inward systems find it stark. People who live here find it legible.
+
+Kelburn Crossing matters because of where it sits, not what it produces. The system is the through-route connecting the inward corridor — via GJ 300 — to the outer north_reach, including Ngata's Star (GJ 706) at hop 7. All traffic moving between the mid-reach and the outer cultural fringe passes through Kelburn Crossing. This has been the system's defining fact for 400 years. It is a junction in the north_reach's nervous system: not a hub with its own gravitational pull, but a place where what moves outward and what moves inward must share the same gate.
+
+The community that grew around this transit function is small, competent, and accustomed to strangers. Kelburn Crossing's permanent population has never exceeded 8,000. The transit infrastructure — gate maintenance, cargo handling, crew relief, a modest station complex with provisioning services — employs roughly a third of them. The rest are engaged in the thin-soil agriculture that supplements imported food, or in the small workshops that have accumulated over centuries to serve a population that cannot afford to import everything and has learned to fabricate what it can.
+
+The cultural character is mixed in ways that reflect the through-route function. Kelburn-Singh's founding cohort was New Zealand and Indian in heritage — Early Arrival pattern, predating the dominant Commonwealth stream in this part of the corridor — and that founding layer is still visible in place names, cuisine, and the particular blend of Maori and Hindi loanwords that colour the local dialect. But 400 years of transit traffic has layered additional influences. Engineers rotating through on Gate Corp contracts, traders passing between Ngata's Star and the mid-reach, occasional settlers who intended to keep moving and did not. Kelburn Crossing absorbs people without absorbing their urgency. It remains unhurried despite being, technically, on the way to somewhere.
+
+---
+
 ## Supply Dependency
-<!-- Required for manufacturing/transit_logistics base and narrative_notable systems -->
+
+Kelburn Crossing depends on inward corridor supply through GJ 300 for manufactured goods, technical equipment, and a significant portion of its food supply. The thin-soil agriculture covers roughly 40% of caloric needs; the remainder is imported. Gate infrastructure components route inward from Gate Corp's regional supply chain. Outward, the system's primary economic function is transit services — it exports nothing of note and imports what it needs to keep the crossing functional. Ngata's Star (GJ 706) provides a modest trade in jade products that transit through Kelburn Crossing, generating handling fees that constitute the system's most reliable discretionary revenue.
+
+---
 
 ## Faction Notes
-<!-- Significant local factions not covered by standard columns -->
+
+**The Crossing Authority** — the local governance body, structured as a council with rotating membership drawn from the permanent population. Has formal responsibility for transit operations, gate coordination, and local administration. Functions competently if unambiguously — the system is small enough that governance disputes are resolved by people who see each other at the same provisioning hall.
+
+**Gate Corp Liaison Station** — a small permanent presence maintaining the through-route gate infrastructure. The Gate Corp staff rotate on multi-year contracts and are a visible minority in a small community. Relations are cordial; the station's technical requirements occasionally conflict with the Crossing Authority's infrastructure priorities, but the disputes are about scheduling, not principle.
+
+**The Kelburn-Singh Foundation** — a cultural preservation body endowed by descendants of the founding family. Maintains a small archive, sponsors local arts, and runs the annual Crossing Festival, which is the system's only significant cultural event and which draws visitors from GJ 300 and, less frequently, Ngata's Star. The Foundation's resources are modest but its symbolic weight in the community is considerable.
+
+---
 
 ## Silence Topic
-<!-- Required for narrative_notable and Institutional Core / Diplomatic Periphery zones -->
+
+The through-route gate has experienced three unscheduled maintenance closures in the past decade — brief, each lasting less than 72 hours, each officially attributed to routine infrastructure adjustment. The Crossing Authority's private records indicate that at least one closure was initiated by Gate Corp without prior notification to local governance, for reasons that were described as "network-level calibration" and not further explained. The Authority has not raised this publicly because Kelburn Crossing's entire economic viability depends on the gate remaining open and reliable, and drawing attention to closures — even brief ones — risks undermining confidence in the route.
+
+**Silence threshold:** faction_trust
+
+---
 
 ## Narrative Hook
-<!-- Required if narrative_notable = true. One sentence. -->
+
+A cargo manifest transiting through Kelburn Crossing lists a consignment bound for Ngata's Star with a declared value that exceeds the jade trade's entire annual volume — and the shipper's registration traces to a holding company with no other commercial activity in the outer north_reach.
+
+---
 
 ## Calibration Note
-<!-- Unusual column combinations requiring justification -->
+
+The header classification reads G-type; the READ-ONLY star data is F7V, which is a warm main-sequence star at the border between F and G classification. The world description — temperate, well-lit, scrubland plains — is consistent with F7V conditions. Wave_2 settlement at hop 6 through_route is plausible as an early infrastructure node established to support outward expansion along this branch.
+
+---
 
 ## Topology
 <!-- READ-ONLY — regenerated from star-map.json edges -->

wiki/star-systems/GJ-285/index.md

@@ -1,4 +1,4 @@
-# PLACEHOLDER_104
+# Fenwick's Lantern
 **GJ 285** | M-type | north_reach
 
 ---
@@ -14,20 +14,55 @@
 
 ---
 
+## Overview
+
+The name is ironic, which is appropriate for a system settled by people who arrived expecting to study stellar flares and ended up farming mushrooms. Fenwick's Lantern sits at the end of a single gate from UV Ceti (GJ 65A), which means it is two hops beyond Wolf 359, at the end of a spur off a spur, connected to the broader reach by a chain of gates that passes through the most famous flare star in the catalog. Thomas Fenwick, who led the Wave 3 expedition that established the settlement, was an atmospheric physicist who had spent four years at the UV Ceti research station before deciding that what the station's supply chain needed was a local source of fresh food rather than another spectrograph.
+
+The 'e' in the M4.5Ve classification denotes emission lines — this star flares, like its neighbour UV Ceti, though less dramatically and less frequently. The flare activity is enough to require radiation shielding on surface installations but not enough to demand the full hardened-bunker approach that UV Ceti requires. Fenwick's original assessment described GJ 285 as "UV Ceti's calmer sibling," and the comparison has held: the star is active, the radiation environment is manageable, and the settlement infrastructure splits the difference between surface exposure and full shelter.
+
+What Fenwick found on the primary body justified his instinct about food production. The world is cold, dim, and geologically quiet — a stable surface under a restless star. The terrain is flat basalt plains interrupted by shallow crater formations, the remnants of an ancient impact history that left the surface pocked with depressions ranging from a few metres to several kilometres across. These craters, sheltered from surface winds and partially shielded from stellar radiation by their rim walls, turned out to be natural growing environments for subterranean and low-light agriculture.
+
+The crater farms are Fenwick's Lantern's contribution to the outer north_reach. The primary crop is a suite of engineered fungal cultivars — descendants of Earth-origin mycological stock adapted over three centuries to the specific mineral profile of the basalt substrate and the dim, flare-punctuated light regime. The fungi grow in layered beds within the crater depressions, sheltered under lightweight radiation-shielding canopies. Production is modest by reach-wide standards but significant for the local supply chain: Fenwick's Lantern feeds UV Ceti's research station and provides supplementary food stocks to systems accessible through the Wolf 359 junction.
+
+The community is small — roughly 1,200 permanent residents — and has the particular character that develops when a settlement is founded by scientists who became farmers. Technical literacy is high. Social pretension is low. The local culture values competence and deprecates complaint. When the star flares, the radiation monitors chirp, the canopies are checked, and work resumes. Fenwick himself died 240 years ago; his descendants still farm the original crater, which is called Fenwick Basin and produces the system's most consistently graded cultivar.
+
+---
+
 ## Supply Dependency
-<!-- Required for manufacturing/transit_logistics base and narrative_notable systems -->
+
+Fenwick's Lantern depends on UV Ceti (GJ 65A) for all manufactured goods and technical equipment, which UV Ceti in turn sources through Wolf 359. The supply chain is long and thin — three gate hops from any significant manufacturing base. The community mitigates this through aggressive local fabrication and repair, maintaining workshops that can produce basic tools, structural components, and agricultural equipment from local basalt-derived materials. Food flows in the opposite direction: Fenwick's Lantern exports fungal cultivar products to UV Ceti, which depends on them for a significant fraction of its fresh food supply. This mutual dependency — food outbound, equipment inbound — has been stable for 300 years.
+
+---
 
 ## Faction Notes
-<!-- Significant local factions not covered by standard columns -->
+
+**The Fenwick Basin Cooperative** — the primary governance and agricultural body. Structured as a worker-owned cooperative with membership tied to active participation in crater farming. The cooperative manages land allocation, crop rotation schedules, and export logistics. Governance is by consensus at quarterly assemblies, with day-to-day operations delegated to a rotating administrator.
+
+**The Canopy Guild** — an informal professional association of the engineers who maintain the radiation-shielding canopy systems. The canopies are the critical infrastructure: without them, flare events would sterilise the growing beds. The Guild's members are the most technically skilled residents and have a quiet authority that exceeds their formal governance role. When a Guild engineer says a canopy section needs replacement, it gets replaced.
+
+**ISPI Supply Office** — the Interstellar Stellar Phenomena Institute maintains a small logistics office at Fenwick's Lantern, coordinating food shipments to the UV Ceti research station. The office has a single permanent staff member who also functions as Fenwick's Lantern's most reliable source of news from the broader reach, a role that is unofficial but widely valued.
+
+---
 
 ## Silence Topic
-<!-- Required for narrative_notable and Institutional Core / Diplomatic Periphery zones -->
+
+The flare frequency at GJ 285 has been increasing over the past two decades — a trend documented in the Canopy Guild's maintenance logs but not formally reported to the cooperative's general membership or to the ISPI supply office. The increase is statistically significant but not yet operationally critical; canopy replacement cycles have shortened from eight years to six. The Guild's senior engineers disagree about whether this represents a long-term trend or a cyclical variation, and they have chosen to resolve the disagreement internally before raising it publicly. In the meantime, the canopy materials budget has been quietly increased through a line item that the cooperative's general accounts describe as "infrastructure maintenance," which is technically accurate.
+
+**Silence threshold:** investigation_depth
+
+---
 
 ## Narrative Hook
-<!-- Required if narrative_notable = true. One sentence. -->
+
+A canopy engineer conducting a routine post-flare inspection has found organic residue on the underside of a shielding panel in an unplanted crater — biological material that did not come from any cultivated fungal stock and does not match anything in the system's biological survey records.
+
+---
 
 ## Calibration Note
-<!-- Unusual column combinations requiring justification -->
+
+The M4.5Ve classification indicates a flare-active red dwarf, consistent with the system's position adjacent to UV Ceti (dM5.5e). The 'e' emission-line designation in both systems suggests a shared stellar neighbourhood characteristic. Wave_3 dead_end settlement at hop 5 is consistent with a supply-chain outpost established to serve an existing research station one hop inward.
+
+---
 
 ## Topology
 <!-- READ-ONLY — regenerated from star-map.json edges -->

wiki/star-systems/GJ-300/index.md

@@ -1,4 +1,4 @@
-# PLACEHOLDER_006
+# Dunmore Stillwater
 **GJ 300** | G-type | north_reach
 
 ---
@@ -14,20 +14,53 @@
 
 ---
 
+## Overview
+
+Dunmore Stillwater sits at the end of a single gate connection to Kelburn Crossing (GJ 216A), and the name describes both the place and the disposition. The primary body is cold, dim under its M4 star, and dominated by a network of shallow inland seas whose surfaces, on calm days, are so flat they reflect the rust-coloured sky without distortion. The founding cohort — Scottish-Australian in heritage, arriving 400 years ago in Wave 2 — looked at the water and named the system for it. They were not poetic people, but the stillness of the place invited a certain care in description.
+
+The founding decision to settle a dead-end system was deliberate. The Dunmore party had spent three years at transit nodes before reaching this spur, and what they wanted was not a crossing point but a terminus. They were agricultural settlers — cooperative farming background, accustomed to collective decision-making and long planning horizons — and the inland seas offered something that transit systems could not: biological productivity. The shallow waters, warmed from below by mild geothermal activity and lit dimly from above by the M4 star, support a dense aquatic ecosystem of microbial mats and filamentous organisms that the founders spent two generations learning to cultivate.
+
+Dunmore aquaculture is the system's reason for existing. The shallow-sea organism now commercially harvested — called dunmore kelp, though it is not kelp in any biological sense — grows in the upper metre of the water column and produces a protein-rich biomass that, when processed, yields a shelf-stable food supplement with an amino acid profile that complements the nutritional gaps common in dim-star agricultural systems. It does not taste good. It does not need to. What it does is keep people in outer north_reach systems from developing the protein deficiency syndromes that afflict populations dependent on narrow-spectrum cold-adapted crops.
+
+Dunmore kelp supplement ships outward through Kelburn Crossing to systems as far as Ngata's Star (GJ 706) and inward toward the mid-reach. The volumes are modest — this is a dead-end system with limited harvesting capacity and a population of 3,000 — but the product fills a niche that no other outer north_reach system occupies. The shallow seas could theoretically support ten times the current harvest. They have not been scaled because the community has not chosen to scale them. The Dunmore cooperative operates at the capacity its members are willing to maintain, and its members are willing to maintain a capacity that lets them live quietly at the end of a single gate.
+
+Four hundred years of dead-end isolation has produced a community that is remarkably self-contained. Dunmore Stillwater receives visitors — traders collecting kelp supplement shipments, occasional researchers studying the aquatic ecosystem, transit passengers who took the wrong gate and need to wait for the return schedule — but it does not seek them. The community's internal social life is dense and its external social life is perfunctory. Residents describe the stillwater personality as patient, which it is, and as incurious, which is less fair. They are curious about their own world. They are not curious about yours.
+
+---
+
 ## Supply Dependency
-<!-- Required for manufacturing/transit_logistics base and narrative_notable systems -->
+
+Dunmore Stillwater depends on Kelburn Crossing (GJ 216A) for all manufactured goods, medical supplies, and technical equipment. Food production is locally sufficient — the aquaculture and supplementary cold-crop agriculture cover nutritional needs — but the system imports fabricated materials it cannot produce at its scale. The supply relationship is uncomplicated: kelp supplement outbound, manufactured goods inbound, on a schedule dictated by the gate's transit frequency. The dead-end topology means a single gate disruption would isolate the system entirely, which the community mitigates through maintaining a 24-month stockpile of critical supplies — a practice established in the founding charter and never abandoned.
+
+---
 
 ## Faction Notes
-<!-- Significant local factions not covered by standard columns -->
+
+**The Dunmore Cooperative** — the governing body, unchanged in basic structure since the founding. All permanent residents hold cooperative membership; governance decisions require supermajority consensus. The structure is slow and intentionally so. The current chair, Hamish Dunmore-Parata, is a seventh-generation descendant of the founding party and manages the cooperative with the unhurried competence that the community values above all other administrative qualities.
+
+**The Stillwater Research Station** — a small biological research facility funded partly by Dunmore cooperative revenues and partly by external grants routed through academic institutions at Johannsen's Star. Studies the aquatic ecosystem that supports the kelp harvest. Has produced several significant papers on dim-star aquatic biology that are cited more widely than the station's two permanent researchers would expect. The station's work has occasionally attracted visiting scientists who find the quiet productive.
+
+---
 
 ## Silence Topic
-<!-- Required for narrative_notable and Institutional Core / Diplomatic Periphery zones -->
+
+The shallow inland seas have been showing a gradual temperature increase over the past three decades — roughly 0.4 degrees across the monitoring period. The Stillwater Research Station's internal reports attribute this to a shift in the geothermal gradient beneath the primary harvesting beds. The kelp organism's productivity is temperature-sensitive; the optimal range is narrow. The station's modelling suggests that at current rates, the primary beds will exceed optimal temperature within 40 years, which would reduce yields significantly. The cooperative has not disclosed this to its trading partners. The kelp supplement's market position depends on reliability of supply, and announcing a potential future decline would invite competitors and reduce current contract prices.
+
+**Silence threshold:** faction_trust
+
+---
 
 ## Narrative Hook
-<!-- Required if narrative_notable = true. One sentence. -->
+
+A nutritional science researcher from an inward system has arrived at Dunmore Stillwater requesting access to the shallow seas for independent sampling — her published work suggests she is developing a synthetic alternative to dunmore kelp supplement, and the cooperative cannot determine whether her visit is academic curiosity or industrial reconnaissance.
+
+---
 
 ## Calibration Note
-<!-- Unusual column combinations requiring justification -->
+
+The header classification reads G-type; the READ-ONLY star data is M4, a dim red dwarf. The G-type header reflects the broader tier classification rather than the precise spectral type. The world described here — cold, dim, geothermally active shallow seas — is consistent with M4 stellar conditions. Wave_2 dead_end settlement at hop 5 is plausible for an agricultural cooperative that deliberately chose isolation.
+
+---
 
 ## Topology
 <!-- READ-ONLY — regenerated from star-map.json edges -->

wiki/star-systems/GJ-3820/index.md

@@ -1,4 +1,4 @@
-# PLACEHOLDER_050
+# Uusi Vantaa
 **GJ 3820** | M-type | north_reach
 
 ---
@@ -14,20 +14,55 @@
 
 ---
 
+## Overview
+
+Uusi Vantaa — New Vantaa, in Finnish — was founded 400 years ago by a cohort from Koskinen's Reach (GJ 876) who wanted what Koskinen's Reach could not offer: quiet. The founding party was small, Finnish-heritage like their parent community, and led by Aino Järvinen, a metallurgist who had spent two decades in Koskinen's Reach's mineral extraction operations before concluding that the binary star system's periodic navigational disruptions and the community's inward-looking anxieties were not worth enduring when a perfectly serviceable K-type star sat one gate away with no one living under it.
+
+The K2 classification — the colon indicates uncertain or approximate spectral typing — places GJ 3820 as an orange dwarf, warmer and brighter than the M-type stars that dominate this region of the north_reach. The difference is immediately visible to anyone arriving from Koskinen's Reach: the light here is amber rather than rust, the shadows are longer and less harsh, and the primary body's surface temperature allows liquid water to exist in open basins without geothermal assistance. Järvinen's expedition report described the light as "the colour of late afternoon in a place that has never had a morning," which was not scientifically useful but was accurate enough that it entered the community's oral tradition.
+
+The primary body is a dry world. There are no oceans, no significant river systems, no rainfall cycle worth naming. What water exists collects in shallow endorheic basins fed by subsurface aquifers — mineral-rich pools that evaporate at the margins, leaving salt flats that extend for kilometres in every direction. The landscape is austere: flat ochre plains, salt deposits glinting amber under the K2 star, and a sky that is permanently hazy with fine mineral dust that refracts the starlight into something that looks, to human eyes, like a world made of old gold.
+
+Järvinen brought metallurgy, and the world rewarded her for it. The subsurface geology contains accessible deposits of rare-earth-adjacent minerals — not spectacularly rich, but concentrated enough for small-scale extraction by a competent team with the right equipment. Over four centuries, Uusi Vantaa has developed a precision metallurgy operation that processes these minerals into specialised alloy components. The output is small: several hundred kilograms per year of high-specification material that ships through Koskinen's Reach to buyers in the broader corridor. The market is narrow — gate maintenance components, scientific instrument housings, specialised fabrication stock — but it is consistent, and the quality reputation has been built over generations of careful work.
+
+The community numbers roughly 900 permanent residents and has the character of a Finnish village transplanted to an alien desert: orderly, reserved, and intensely private. Social life revolves around the sauna tradition, which Järvinen's cohort brought from Koskinen's Reach and which has been adapted to local conditions — the mineral-rich basin water, heated, produces a bathing experience that long-term residents describe as therapeutic and visitors describe as alarming. Community governance follows the Koskinen model: council-based, consensus-driven, slow. The isolation is total; one gate in, one gate out, and the gate leads only to Koskinen's Reach, which is itself a spur end. Uusi Vantaa is a dead end off a dead end. The residents consider this a feature.
+
+---
+
 ## Supply Dependency
-<!-- Required for manufacturing/transit_logistics base and narrative_notable systems -->
+
+All manufactured goods and technical equipment route inward through Koskinen's Reach (GJ 876), which is itself dependent on multi-hop supply chains to the broader corridor. The double-spur position makes Uusi Vantaa one of the most supply-chain-remote permanently inhabited systems in the north_reach. The community compensates through extreme self-sufficiency in consumables: food production from aquifer-irrigated greenhouses, fabrication of basic tools and structural components from local mineral stock, and a cultural emphasis on repair over replacement that has been reinforced by four centuries of expensive logistics. Alloy products ship outward through Koskinen's Reach; the value per kilogram is high enough to justify the transport costs, which is the fundamental economic equation that keeps the settlement viable.
+
+---
 
 ## Faction Notes
-<!-- Significant local factions not covered by standard columns -->
+
+**The Järvinen Works** — the metallurgical cooperative descended from the founder's original extraction and processing operation. Manages mineral sourcing rights, alloy production, and export logistics. The current works master, Veikko Järvinen-Aho, is a direct descendant of the founder and maintains the family tradition of personally signing off on every outgoing shipment — a quality assurance practice that doubles as a governance ritual.
+
+**The Basin Council** — Uusi Vantaa's governing body, modelled on Koskinen's Reach's Community Council. Handles all non-metallurgical governance: land use, water allocation, agricultural scheduling, social disputes. The Council and the Järvinen Works operate as parallel institutions with overlapping membership; in practice, the works master and the council chair consult on everything because the community is too small for institutional separation to be meaningful.
+
+**The Sauna Circle** — not a formal institution but a social practice with governance implications. Major community decisions are informally negotiated in the sauna before being formally presented to the Basin Council. Outsiders who do not participate in the sauna tradition find themselves excluded from the informal consensus process, which has occasionally created friction with visiting traders or technical contractors.
+
+---
 
 ## Silence Topic
-<!-- Required for narrative_notable and Institutional Core / Diplomatic Periphery zones -->
+
+One of the three mineral deposit areas currently licensed for extraction is showing declining yield — the accessible vein has been worked for 200 years and is approaching exhaustion. The Järvinen Works' internal geological surveys have identified a replacement deposit, but it lies beneath the primary settlement's water aquifer. Extraction would require either relocating the settlement's water infrastructure — a multi-decade project — or accepting contamination risk to the aquifer during extraction operations. The works master has not disclosed the yield decline to the Basin Council or to external trading partners. Current contracts are being fulfilled from stockpiled material while the internal debate continues.
+
+**Silence threshold:** faction_trust
+
+---
 
 ## Narrative Hook
-<!-- Required if narrative_notable = true. One sentence. -->
+
+A geological surveyor from an inward university has submitted a research permit application to study Uusi Vantaa's subsurface aquifer system — the same aquifer that sits above the replacement mineral deposit — and the application arrived three weeks after the Järvinen Works' internal survey was completed, which should not be a coincidence because that survey was not shared externally.
+
+---
 
 ## Calibration Note
-<!-- Unusual column combinations requiring justification -->
+
+The K2: classification indicates an uncertain or approximate K-type spectral designation. The world described here — dry, mineral-rich, amber-lit — is consistent with a K2 star's output. Wave_2 dead_end settlement at hop 5 is plausible as a daughter colony of the adjacent Koskinen's Reach community, founded by a cohort that chose to extend further outward along the same spur.
+
+---
 
 ## Topology
 <!-- READ-ONLY — regenerated from star-map.json edges -->

wiki/star-systems/GJ-588/index.md

@@ -1,4 +1,4 @@
-# PLACEHOLDER_058
+# Harrowfield
 **GJ 588** | F-type | north_reach
 
 ---
@@ -14,20 +14,59 @@
 
 ---
 
+## Overview
+
+Harrowfield was not supposed to be permanent. The founding expedition — a Gate Corp forward survey team in Wave 3 — established a base camp at this dead-end spur off Carrington's Post (GJ 250A) to conduct a geological assessment of the primary body's mineral potential. The assessment was completed in six months. The survey team's report concluded that the mineral deposits were present but sub-commercial: too dispersed for efficient extraction, too far from any processing hub to justify the transport costs. Gate Corp filed the report, classified the system as low-priority, and reassigned the survey team.
+
+Three of the surveyors did not leave.
+
+Margaret Harrowfield, the team's senior geologist, and two junior colleagues stayed behind under a homestead claim — a provision in the settlement charter that permitted survey personnel to claim residential rights in systems they had assessed, provided they could demonstrate self-sufficiency within two years. Harrowfield could. She had spent six months studying the primary body and understood its character better than the report's economic conclusions suggested. The world was not valuable for what could be extracted from it. It was valuable for what could be grown in it.
+
+The M0 star — the warmest class of red dwarf — provides enough illumination for photosynthesis without supplemental lighting, a rarity in the outer north_reach's M-dwarf systems. The primary body's surface is composed of deep regolith over ancient volcanic substrata, and the regolith has a specific mineral composition that Harrowfield's geological training allowed her to recognise: it is almost precisely the profile that Earth-origin timber species require, with the addition of nitrogen-fixing microbial amendments that the survey team had brought for soil testing and that Harrowfield repurposed for cultivation.
+
+Harrowfield planted trees. That first planting — six seedlings of cold-adapted Scots pine, carried in the survey team's biological sample kit — is now a forest. Three hundred years of deliberate silviculture have produced a managed woodland covering roughly 40 square kilometres of the primary body's temperate zone. The species mix has diversified: pine, larch, a birch variant adapted to the M0 light spectrum, and several experimental plantings of hardwoods that are still being evaluated in their third generation. The woodland is Harrowfield's economy, its identity, and its reason for existing at the end of a single gate.
+
+Timber is rare in the outer north_reach. Most M-dwarf systems cannot support arboreal growth without prohibitive energy inputs for lighting and heating. Harrowfield's M0 star sits at exactly the threshold where managed forestry becomes viable without subsidy — a narrow window that the founder recognised and that three centuries of careful management have exploited. The timber products that ship through Carrington's Post serve a specific and otherwise unmet demand: cooperage stock for Calloway Reach's distilleries, structural timber for habitat construction in systems that have nothing to build with, and increasingly, decorative wood for communities wealthy enough to value a material that most of the outer reach has never touched.
+
+The community has grown to roughly 800 permanent residents, most of whom are involved in some aspect of the forestry operation. Harrowfield has the unhurried character of people who work on generational timescales — a tree planted today will be harvested by someone not yet born, and the planting decisions reflect that awareness. The culture is patient, proprietary about the woodland, and mildly suspicious of visitors who do not understand what it costs, in time and attention, to grow a forest under a red star.
+
+---
+
 ## Supply Dependency
-<!-- Required for manufacturing/transit_logistics base and narrative_notable systems -->
+
+Harrowfield depends on Carrington's Post (GJ 250A) for manufactured goods, technical equipment, and the specialised forestry tools that the community cannot fabricate locally. Food production is locally sufficient — the same soil conditions that support the woodland support conventional agriculture in cleared plots, and the M0 star provides adequate growing light. Timber products ship outbound through Carrington's Post; the most significant ongoing trade relationship is with Calloway Reach (GJ 3325), which sources cooperage wood from Harrowfield through the corridor. This trade is Harrowfield's primary revenue source and Calloway Reach's primary source of cask-quality timber — a mutual dependency that has developed over approximately 200 years and that neither party could easily replace.
+
+---
 
 ## Faction Notes
-<!-- Significant local factions not covered by standard columns -->
+
+**The Harrowfield Forestry Trust** — the governing body and land management institution. Structured as a trust rather than a cooperative, reflecting the founder's conviction that the woodland should be managed for long-term sustainability rather than short-term cooperative returns. The Trust holds all forestry land in perpetuity; residents have cultivation rights but not ownership. The current chief forester, Callum Harrowfield-Ndaba, is a fifth-generation descendant of the founder and takes the hereditary stewardship obligation seriously enough that his children have been trained in silviculture since they could walk.
+
+**The Timber Merchants' Circle** — a small association of the traders and logistics operators who manage Harrowfield's export operations. Has periodic tensions with the Trust over harvesting schedules: the merchants want to increase output to meet growing demand from Calloway Reach; the Trust maintains that harvesting rates are set by the woodland's regeneration capacity, not by the market's appetite.
+
+**Gate Corp Records Office** — Gate Corp maintains a nominal interest in Harrowfield through its original survey filing. A small records office — unstaffed, accessed remotely — holds the original geological survey data. The homestead claim that Harrowfield filed is, technically, still subject to Gate Corp review under a provision that has never been exercised and that most legal scholars consider expired by custom if not by statute.
+
+---
 
 ## Silence Topic
-<!-- Required for narrative_notable and Institutional Core / Diplomatic Periphery zones -->
+
+The Forestry Trust's internal ecological monitoring has detected a fungal pathogen in the birch stands at the woodland's northern margin — a slow-moving infection that has killed approximately 200 trees over the past five years. The pathogen does not appear to affect pine or larch, but the birch component of the woodland provides critical windbreak and soil-stabilisation functions. The Trust has not disclosed the pathogen to external trading partners or to Carrington's Post because the immediate timber supply — predominantly pine — is unaffected, and public disclosure would risk contract renegotiations at a moment when the Trust is negotiating a long-term supply agreement with Calloway Reach.
+
+**Silence threshold:** faction_trust
+
+---
 
 ## Narrative Hook
-<!-- Required if narrative_notable = true. One sentence. -->
+
+A timber buyer from Calloway Reach has arrived at Harrowfield requesting a tour of the northern birch stands specifically — the section affected by the undisclosed pathogen — because a cooperage test at Calloway has produced casks with an unusual flavour profile that the distillers traced to a recent Harrowfield birch shipment, and they want to understand what changed.
+
+---
 
 ## Calibration Note
-<!-- Unusual column combinations requiring justification -->
+
+The header classification reads F-type; the READ-ONLY star data is M0, the warmest class of red dwarf, sitting at the boundary between M and K spectral types. The F-type header reflects the broader tier classification placeholder rather than the precise spectral type. The world described here — regolith-over-volcanic substrate, photosynthetically viable under natural starlight — is consistent with M0 conditions. Wave_3 dead_end settlement at hop 5 is consistent with a homestead claim by a survey team that recognised value the official assessment missed.
+
+---
 
 ## Topology
 <!-- READ-ONLY — regenerated from star-map.json edges -->

wiki/star-systems/GJ-638/index.md

@@ -1,4 +1,4 @@
-# PLACEHOLDER_065
+# Greymantle
 **GJ 638** | M-type | north_reach
 
 ---
@@ -14,20 +14,55 @@
 
 ---
 
+## Overview
+
+Greymantle is the name the founders gave the world, and it is the name the world deserves. The primary body is wrapped in a persistent atmospheric haze — fine mineral particulate suspended in a thick nitrogen-oxygen atmosphere that never fully settles. The K7V star, already cooler and dimmer than the Sun, is reduced by the haze to a pale disc that casts diffuse light without sharp shadows. The landscape is grey. The sky is grey. The horizon, on clear days, is a slightly different shade of grey. The founders, arriving 400 years ago in Wave 2 from Ashfield (GJ 178), looked at what they had found at the end of a single gate and named it with the precision of people who had learned, at Ashfield, to describe exactly what they saw.
+
+The connection to Ashfield is the defining relationship. GJ 178's volcanic ash plains and ceramic economy sit one gate inward; Greymantle extends that geological character into a different register. Where Ashfield's ash is deposited by active volcanism, Greymantle's particulate is ancient — the remnant of a geological era that ended long before human arrival, suspended in the atmosphere by persistent low-altitude winds that circulate across flat terrain with nothing to break them. The world is geologically dead. Its atmosphere is geologically alive. The haze is what happens when wind has nothing to do but move dust.
+
+The founding party was Australian-English in heritage — part of the same Commonwealth-inflected stream that settled much of the north_reach, though by hop 6 the cultural signal is fading into something more locally defined. They came to Greymantle because Ashfield's through-route character did not suit them. They wanted a terminus, not a waystation. What they found at the terminus was a world with one immediately useful property: the atmospheric particulate, when collected and processed, yields a mineral powder with exceptional properties as a filtration medium.
+
+Greymantle filter powder is the system's sole significant export. The material — a naturally occurring aluminosilicate with a pore structure that cannot be economically replicated through synthesis — is used in atmospheric processing equipment, water purification systems, and industrial filtration applications across the outer north_reach. The collection process is simple: atmospheric precipitators mounted on the settlement's roof structures gather particulate continuously, which is then graded, processed, and packaged for export. The settlement runs its precipitators the way other communities run their farms — as infrastructure so fundamental to daily life that it has become invisible.
+
+The population is approximately 600 permanent residents, making Greymantle one of the smaller inhabited systems in the north_reach. The community has the insular character common to dead-end settlements at high hop distance, compounded by the atmospheric conditions that make outdoor activity unpleasant for anyone without respiratory adaptation. Long-term residents develop a tolerance for the particulate that visitors do not share; the standard-issue filtration masks that newcomers wear are a visible marker of outsider status that the community notes without comment.
+
+Four centuries of living in perpetual grey has produced a local aesthetic that visitors find either beautiful or oppressive. Interior spaces are brightly lit and intensely coloured — the compensation for exterior monotony. Greymantle's domestic interiors, by reputation, are among the most carefully decorated in the outer north_reach: painted walls, dyed textiles, coloured glass. The contrast between the grey exterior and the vivid interior is the system's most distinctive cultural expression. People who grow up here learn to make their own light.
+
+---
+
 ## Supply Dependency
-<!-- Required for manufacturing/transit_logistics base and narrative_notable systems -->
+
+Greymantle depends entirely on Ashfield (GJ 178) for manufactured goods, food supplements beyond local greenhouse capacity, and technical equipment. The single-gate dependency is mitigated by filter powder's consistent demand: Ashfield's ceramic industry uses Greymantle powder in kiln filtration systems, creating a reciprocal trade relationship that gives both communities incentive to maintain the gate connection. Agricultural production under greenhouse conditions — the atmospheric particulate makes open-air agriculture impractical — covers roughly 60% of caloric needs. The remainder is imported from Ashfield, which in turn sources from Singh's Landing and the inward corridor.
+
+---
 
 ## Faction Notes
-<!-- Significant local factions not covered by standard columns -->
+
+**The Precipitator Collective** — Greymantle's governing body and primary economic institution. Manages the precipitator network, grading standards, and export logistics. All permanent residents hold membership; governance is by annual assembly with a three-person executive committee handling day-to-day operations. The Collective's current chair, Dorothy Greymantle-Chen, has held the position for 12 years and is widely regarded as competent enough that no one has bothered to challenge her.
+
+**The Colour Society** — an informal cultural institution that curates the community's interior decoration traditions. Maintains a shared pigment library, sponsors apprenticeships in dyeing and glasswork, and organises the annual Colour Festival, which is Greymantle's only significant community event. The Society has no formal governance role but wields cultural authority: a household whose interior decoration is assessed as uninspired faces social consequences that are subtle and persistent.
+
+---
 
 ## Silence Topic
-<!-- Required for narrative_notable and Institutional Core / Diplomatic Periphery zones -->
+
+The atmospheric particulate density has been gradually increasing over the past century — a trend so slow that it is only visible in the Precipitator Collective's long-term monitoring data. The current generation's filter powder yields per precipitator are approximately 15% higher than the generation before. This is commercially advantageous in the short term. The Collective's internal environmental assessment, however, notes that if the trend continues at its current rate, atmospheric visibility will degrade to levels that make surface navigation without electronic assistance unreliable within 200 years, and greenhouse growing conditions will deteriorate within 80. The assessment has been filed internally. The Collective has not shared it with Ashfield or with any external body because the immediate commercial implications — increased yields — are positive, and the long-term implications are someone else's problem.
+
+**Silence threshold:** investigation_depth
+
+---
 
 ## Narrative Hook
-<!-- Required if narrative_notable = true. One sentence. -->
+
+An atmospheric scientist from Ashfield has been comparing Greymantle's precipitator yield data against Ashfield's own volcanic deposition records and has noticed that the particulate composition in Greymantle's recent exports contains trace minerals that do not match the system's published geological profile — suggesting either that the atmospheric source is changing or that the published profile was never complete.
+
+---
 
 ## Calibration Note
-<!-- Unusual column combinations requiring justification -->
+
+The header classification reads M-type; the READ-ONLY star data is K7V, which sits at the boundary between K and M spectral types. The M-type header reflects the broader tier classification placeholder. The world described here — persistent atmospheric haze, dim diffuse light, geologically inactive — is consistent with K7V conditions. Wave_2 dead_end settlement at hop 6 is plausible for a daughter colony established from Ashfield by settlers who preferred isolation to through-route traffic.
+
+---
 
 ## Topology
 <!-- READ-ONLY — regenerated from star-map.json edges -->